| a | Acceleration or atto (10-18 multiplier) | AFIPS | Automated Financial Information |
| A | Ampere, Area, Altitude, Angstrom (Å), | | Processing System |
| Antenna Aperture, or Aerial (U.K.) | AFOTEC | Air Force Operational T&E Center |
| A-799 | No evidence of failure report | A/G | Air-to-Ground |
| A/A, A-A, AA | Air-to-Air or Anti-Aircraft | AGB | Autonomous Guided Bomb |
| AA-() | Air-to-Air missile number () | AGC | Automatic Gain Control |
| AAA | Anti-Aircraft Artillery | AGI | Auxiliary General Intelligence AAAA |
| Army Aviation Association of America | | (Intelligence-gathering Ship) AAED |
| Advanced Airborne Expendable Decoy | AGL | Above Ground Level |
| AAM | Air-to-Air Missile | AGM | Air-to-Ground Missile |
| AARGM | Advanced Anti-Radiation Guided | AGS | Angle Gate Stealer |
| Missile (concept) | AHWS | Advanced Helicopter Weapons System AAW |
| Anti-Air Warfare | AI | Artificial Intelligence, Air Intercept, or A-BIT |
| Automatic Built-in-Test | | Airborne Interceptor |
| ABM | Air Breathing Missile or | AIAA | American Institute of Aeronautics and |
| Anti-ballistic Missile | | Astronautics |
| A/C | Aircraft (also acft.) | AIC | Air Intercept Control |
| AC | Alternating Current | AIM | Air Intercept Missile |
| ACA | Associate Contractor Agreement or | AIRLANT | Commander, U.S. Naval Air Forces, |
| Airspace Coordination Area | | Atlantic Fleet |
| ACAT | Acquisition Category | AIRPAC | Commander, U.S. Naval Air Forces, |
| ACCB | Aircraft Configuration Control Board | | Pacific Fleet |
| Acft | Aircraft (also A/C) | AJ | Anti-jamming or Anti-Jam |
| ACLS | Aircraft Carrier Landing System | A-Kit | Aircraft wiring kit for a system |
| ACM | Advanced Cruise Missile or Air | | (includes cabling, racks, etc. excluding |
| Combat Maneuvering | | WRAs) |
| ACQ | Acquisition | AM | Amplitude Modulation |
| ACS | Antenna Coupler Set | AMD | Aircraft Maintenance Department |
| ACTD | Advanced Concept Technology | AMES | Advanced Multiple Environment |
| Demonstration | | Simulator |
| A/D | Analog to Digital | AMLV | Advanced Memory Loader/Verifier |
| Ada | Not an acronym. Ada is the DoD | Amp | Amplifier |
| standard programming language. | AMRAAM | Advanced, Medium-Range, Air-to-Air |
| ADM | Advanced Development Model | | Missile |
| ADP | Automatic Data Processing or | ANSI | American National Standards Institute |
| Advanced Development Program | ANT | Antenna |
| ADVCAP | Advanced Capability | A0 | Operational Availability |
| AEC | Aviation Electronic Combat (Army) | AO | Acousto-Optical |
| AEGIS | Automatic Electronic Guided Intercept | AOA | Angle of Arrival, Angle of Attack, or |
| System | | Analysis of Alternatives (similar to |
| AEL | Accessible Emission Limit | | COEA) |
| AEW | Airborne Early Warning | AOC | Association of Old Crows (Professional |
| AF | Antenna Factor, Air Force, or Audio | | EW Society) or Award of Contract |
| Frequency | AOT | Angle Only Track, Angle Off Tail, or |
| AFB | Air Force Base or Airframe Bulletin | | Acquisition-on-Target |
| AFC | Automatic Frequency Control or | APC | Amphenol Precision Connector or |
| Airframe Change | | Armored Personnel Carrier |
| APN | Aircraft Procurement, Navy | Avg | Average |
| APO | Armed Forces (or Army or Air) Post | AWACS | Airborne Warning and Control System |
| Office, Acquisition Program Office | AZ | Azimuth (also Az) |
| APU | Auxiliary Power Unit | | |
| AR | Anti-reflection or Aspect Ratio | | |
| ARM | Anti-radiation Missile | B | Bandwidth (also BW) or Magnetic |
| ARO | After Receipt of Order | | inductance |
| A/S, A-S, AS | Air-to-Surface | BAFO | Best and Final Offer |
| ASCM | Anti-ship Cruise Missile | BATBULL | Bat Bulletin - former VX-9 tactics |
| ASE | Aircraft Survivability (or Survival) | | newsletter now called "On Target" Equipment, |
| Allowable Steering Error, | BAU | Bus Adapter Unit |
| or Automatic Support Equipment | BC | Bus Controller |
| ASIC | Application Specific Integrated Circuit | BDA | Battle Damage Assessment |
| ASK | Amplitude Shift Keying | BDI | Battle Damage Indication |
| ASM | Air-to-Surface Missile | BFO | Beat Frequency Oscillator |
| ASO | Aviation Supply Office | BI | Background Investigation |
| A-Spec | System Specification | BIFF | Battlefield Identification, Friend, or Foe |
| ASPJ | Airborne Self-Protection Jammer | BIT | Built-in-Test, Binary Digit or |
| ASPO | Avionics Support (also Systems) | | Battlefield Information Technology |
| Project Office (also Officer) | BITE | Built-in-Test Equipment |
| ASR | Advanced Special Receiver or | BIU | Bus Interface Unit |
| Airport/Airborne Surveillance Radar | B-Kit | Avionics "Black Box" WRAs |
| ASRAAM | Advanced Short Range Air-to-Air | B/N | Bombardier/Navigator |
| Missile | BNC | Bayonet Navy Connector |
| ASTE | Advanced Strategic and Tactical | BOA | Basic Ordering Agreement |
| Expendables | BOL | Swedish chaff dispenser in a launcher |
| ASW | Anti-submarine Warfare | BPF | Band Pass Filter
|
| ATA | Advanced Tactical Aircraft | BPS | Bits Per Second |
| ATARS | Advanced Tactical Air Reconnaissance | BUMED | Bureau of Medicine (Navy) |
| System | BUNO | Bureau Number (aircraft) |
| ATC | Air Traffic Control | BUR | Bottom Up Review |
| ATD | Advanced Technology Demonstration | BVR | Beyond Visual Range |
| ATE | Automatic Test Equipment | BW | Beamwidth (referring to an antenna) or |
| ATEDS | Advanced Technology Expendables | | sometimes Bandwidth |
| and Dispenser Systems | BWA | Backward Wave Amplifier |
| ATF | Advanced Tactical Fighter | BWO | Backward Wave Oscillator |
| ATIMS | Airborne Turret Infrared Measurement | | |
| System or Airborne Tactical | | |
| Information Management System | | |
| ATIRCM | Advanced Threat Infrared | c | Speed of Light = 3x108 meters/sec = |
| Countermeasures | | 1.8x1012 furlongs per fortnight or 1.8 |
| ATP | Acceptance Test Procedure | | terafurlongs per fortnight, or centi |
| ATR | Autonomous Target Recognition, | | (10-2) multiplier |
| Airborne Transportable Rack | C | Electron Charge, Coulomb, |
| ATRJ | Advanced Threat Radar Jammer | | Capacitance, Celsius, Centigrade, |
| AUTODIN | Automatic Digital Network | | Confidential, Roman numeral for 100, |
| AUTOVON | Automatic Voice Network (now DSN) | | or a programming language (also C+ |
| AUX | Auxiliary | | and C++) |
| avdp. | Avoirdupois (system of measures) | C2 | Command and Control |
| C3 | Command, Control, and | CIA | Central Intelligence Agency |
| Communications | CIC | Combat Information Center (now called |
| C3CM | C3-Countermeasures | | CDC) |
| C3I | Command, Control, Communications, | CID | Combat Identification or Charge and Intelligence |
| | | Injection Device |
| CAD | Computer-Aided Design | CILOP | Conversion in Lieu of Procurement |
| CAE | Computer-Aided Engineering | CINC | Commander in Chief |
| CAG | Carrier Air Group | CIS | Commonwealth of Independent States |
| CAGE | Commercial and Government Entry | | (11 of 15 former Soviet Union |
| CAIV | Cost as an Independent Variable | | territories except Estonia, Georgia, |
| CAL | Calibration | | Latvia, and Lithuania) |
| CAM | Computer-Aided Manufacturing or | CIWS | Close-In Weapon System |
| Constant Addressable Memory | CJ | Coherent Jamming |
| CAO | Competency Aligned Organization or | CLC | Command Launch Computer |
| Contract Administrative Officer | cm | Centimeter |
| CAP | Combat Air Patrol | CM | Countermeasures or Configuration |
| CAS | Close Air Support or Calibrated | | Management |
| Airspeed | CMC | Command Mission Computer or |
| CASS | Consolidated Automated Support | | Commandant Marine Corps |
| System | CMDS | Countermeasure Dispensing System |
| CAT | Catapult or Cockpit Automation | CMOS | Complementary Metal-Oxide |
| Technology | | Semiconductor |
| CB | Citizens Band (also see Seabee) | CMP | Configuration Management Plan |
| CBD | Commerce Business Daily | CMWS | Common Missile Warning System |
| CBIT | Continuous Built-in-Test | CNAL | Commander, Naval Air Forces Atlantic |
| CBO | Congressional Budget Office | | (COMNAVAIRLANT) |
| CCA | Circuit Card Assembly | CNAP | Commander, Naval Air Forces Pacific |
| CCB | Configuration Control Board | | (COMNAVAIRPAC) |
| CCD | Charge Coupled Device | CNI | Communications, Navigation, and |
| CCM | Counter-Countermeasures | | Identification |
| CCN | Contract Change Number or | CO | Commanding Officer, Contracting |
| Configuration Change Notice | | Officer, Change Order, or Carbon |
| CCU | Cockpit Control Unit | | Monoxide |
| cd | Candela (SI unit of luminous intensity) | COB | Close of Business |
| CD | Compact Disk or Control and Display | COEA | Cost and Operational Effectiveness |
| CDC | Combat Direction Center | | Analysis |
| CDR | Critical Design Review | COG | Center of Gravity or Cognizant |
| CDRL | Contract Data Requirements List | COMM | Communications |
| CE | Conducted Emission | COMSEC | Communications Security |
| CECOM | Communications and Electronics | CONSCAN | Conical Scanning Radar |
| Command (Army) | CONUS | Continental United States
|
| CEP | Circular Error Probability | CO-OP | Cooperative (countermeasures) |
| CFA | Cognizant Field Activity | Cos | Cosine |
| CFAR | Constant False Alarm Rate | COSRO | Conical-Scan on Receive Only |
| CFE | Contractor Furnished Equipment | COTS | Commercial Off-The-Shelf |
| CG | Center of Gravity, Commanding | | (hardware/software) |
| General, Command Guidance, or | CP | Circularly Polarized (antenna), Central |
| Cruiser | Processor, or Command Post | | |
| CI | Configuration Item | CPS | Computer or Control Power Supply |
| CPU | Central Processing Unit | DBOF | Defense Business Operations Fund |
| CRC | Originally Chemical Rubber Company, | dBsm | Decibel value of radar cross section |
| now published reference books by CRC | | referenced to a square meter |
| Press | dBW | Decibel referenced to the power of one |
| CRFM | Coherent RF Memory | | watt |
| CRISD | Computer Resources Integrated | DC | Direct Current, Discrete Circuit, or |
| Support Document | District of Columbia | |
| CRLCMP | Computer Resources Life Cycle | DCE | Data Communication Equipment |
| Management Plan | DDI | Digital Display Indicator |
| CRO | Countermeasures Response | DDS | Direct Digital Synthesizers |
| Optimization | DECM | Deceptive Electronic Countermeasures |
| CRT | Cathode Ray Tube or Combat Rated | | (also Defensive ECM) Thrust (afterburner) |
| | deg | Degree |
| Crypto | Cryptographic | DEMVAL | Demonstration Validation (also |
| CS | Conducted Susceptibility | | DEM/VAL) |
| CSC | Commodity Software Change | DET | Detachment |
| CSCI | Computer Software Configuration Item | DF | Direction Finding |
| C-Spec | Product Specification | DFT | Discrete Fourier Transform |
| CSS | Contractor Support Services | DI | Data Item |
| CV | Aircraft Carrier | DIA | Defense Intelligence Agency or |
| CVA | Older designation for Attack Carrier | | Diameter |
| CVN | Nuclear Powered Aircraft Carrier | DID | Data Item Description |
| CVR | Crystal Video Receiver | DIRCM | Directed Infrared Countermeasures |
| CW | Continuous Wave or Chemical Warfare | DJ | Deceptive Jamming |
| CWBS | Contract Work Breakdown Structure | D-Level | Depot Level Maintenance |
| CWI | Continuous Wave Illuminator | DM | Data Management (also manager) |
| CY | Calendar Year | DMA | Direct Memory Address or Defense |
| | | Mapping Agency |
| | DME | Distance Measuring Equipment |
| d | Distance, Diameter, or deci (10-1 | DNA | Defense Nuclear Agency, Does Not |
| multiplier) | | Apply, or Deoxyribonucleic Acid |
| D | Distance, Diameter, Electron | DOA | Direction of Arrival |
| displacement, Detectivity, Doppler, | DOD or DoD | Department of Defense |
| Density, or Roman numeral for 500 | DoDISS | DoD Index of Specifications and |
| da | deca (100 multiplier) | | Standards |
| D/A | Digital-to-Analog | DOM | Depth of Modulation |
| DAB | Defense Acquisition Board | DON | Department of the Navy |
| DAC | Digital to Analog Converter or Dept of | DOS | Disk Operating System |
| Army Civilian | DPRO | Defense Plant Representative Office |
| DAR | Defense Acquisition Regulation | DRB | Defense Review Board |
| DARPA | Defense Advanced Research Projects | DRFM | Digital RF Memory |
| Agency | DSARC | Defense Systems Acquisition (and) | |
| DB | Database | | Review Council |
| dB | Decibel | DSN | Defense Switching Network |
| dBc | dB referenced to the Carrier Signal | DSO | Dielectrically Stabilized Oscillator |
| dBi | Decibel antenna gain referenced to an | DSP | Digital Signal Processor |
| isotropic antenna | D-Spec | Process Specification |
| dBm | Decibel referenced to the power of one | DT (&E) | Development or Developmental Test |
| milliwatt | | (and Evaluation) |
| DTC | Design to Cost | EMCAB | EMC Advisory Board |
| DTE | Data Terminal Equipment | EMCON | Emission Control |
| DTO | Digitally Tuned Oscillator or Defense | EMD | Engineering and Manufacturing |
| Technology Objectives | | Development |
| | EME | Electromagnetic Environment |
| e | Electron charge or base of natural | EMI | Electromagnetic Interference |
| logarithms (2.71828...) | EMP | Electromagnetic Pulse |
| E | Electric Field Intensity or Strength, | EMR | Electromagnetic Radiation |
| Energy, East, or Exa (1018 multiplier) | EMS | Electromagnetic Susceptibility |
| E3 | Electromagnetic Environmental Effects | EMV | Electromagnetic Vulnerability |
| EA | Electronic Attack | EO | Electro-Optic, Electro-Optical, or |
| (similar to older term of ECM) | | Engineering Order |
| EC | Electronic Combat | EOB | Electronic Order of Battle or Expense |
| ECAC | Electromagnetic Compatibility | | Operating Budget |
| Analysis Center (DOD), now Joint | EOCM | Electro-Optic Countermeasures |
| Spectrum Center
| EOF | Electro-Optical Frequency |
| ECCM | Electronic Counter-Countermeasures | | (300 to 3 x 107 GHz) |
| (similar to newer term of EP) | EP | Electronic Protection (similar to older |
| ECL | Emitter Coupled Logic | | terms of DECM or ECCM) |
| ECM | Electronic Countermeasures | EPA | Environmental Protection Agency |
| (similar to newer term of EA) | EPROM | Electrically Programmable Read-only |
| ECN | Engineering Change Notice | | Memory |
| ECO | Engineering Change Order | ERAM | Electronic Counter-Countermeasures |
| ECP | Engineering Change Proposal or Egress | | (also Protection) Requirements and |
| Control Point | | Assessment Manual |
| ECR | Electronic Combat Range (China Lake) | ERP | Effective Radiated Power |
| or Electronic Combat & | ES | Electronic Surveillance (similar to older |
| Reconnaissance | | term of ESM) |
| ECS | Environmental Control System | ESD | Electrostatic Discharge |
| ECSEL | Electronic Combat Simulation and | ESM | Electronic Support Measures (similar to |
| Evaluation Laboratory (NAWCWPNS) | | newer term of ES) |
| ECU | Electronic Control Unit | ESSM | Evolved Sea Sparrow Missile |
| EDM | Engineering Development Model | ET | Electronics Technician |
| EED | Electro-Explosive Device | ETI | Elapsed Time Indicator |
| EEPROM | Electrically Erasable/Programmable | ETR | Estimated Time to Repair |
| Read-only Memory | EW | Electronic Warfare or Early Warning |
| EHF | Extremely High Frequency | EWAT | Electronic Warfare Advanced |
| (30 to 300 GHz) | | Technology |
| EIA | Electronic Industries Associates | EWIR | Electronic Warfare Integrated |
| EID | Emitter Identification Data | | Reprogramming (USAF database) |
| EIRP | Effective Isotropic Radiated power | EWMP | Electronic Warfare Master Plan |
| EL | Elevation (also El) | EWO | Electronic Warfare Officer |
| ELF | Extremely Low Frequency | EWOPFAC | Electronic Warfare Operational |
| (3 Hz to 3 KHz) | | Reprogramming Facility |
| ELINT | Electronics Intelligence | EWRL | Electronic Warfare Reprogrammable |
| ELNOT | Emitter Library Notation | | Library (USN) |
| EM | Electromagnetic | EWSI | EW Systems Integration |
| E-Mail | Electronic Mail | EWSSA | EW Software Support Activity |
| EMC | Electromagnetic Compatibility | EXP | Expendable Countermeasure |
| f | femto (10-15 multiplier), Frequency | FSED | Full Scale Engineering Development |
| (also F), or lens f number | FSK | Frequency Shift Keying |
| F | Frequency (also f), Force, Farad, | FSU | Former Soviet Union |
| Faraday Constant, Female, Fahrenheit, | ft | Feet or Foot |
| Noise Figure, Noise Factor or | FTC | Fast Time Constant |
| "Friendly" on RWR display | FTD | Foreign Technology Division (USAF) |
| F/A | Fighter/Attack | FWD | Forward |
| FAA | Federal Aviation Administration | FY | Fiscal Year |
| FAC | Forward Air Controller | | |
| FAR | Federal Acquisition Regulations or | | |
| False Alarm Rate | g | Gravity (also G) |
| FAX | Facsimile | G | Universal Gravitational Constant (also |
| fc | Footcandle (unit of illuminance) | | K), Giga (109 multiplier), Conductance, |
| FCA | Functional Configuration Audit | | or Gain |
| FCR | Fire Control Radar | G&A | General and Administrative (expense) |
| FDR | Frequency Domain Reflectometry | GaAs | Gallium Arsenide |
| FEBA | Forward Edge of the Battle Area | GACIAC | Guidance and Control Information |
| FET | Field-Effect Transistor | | Analysis Center (DoD) |
| FEWSG | Fleet Electronic Warfare Support | gal | Gallon |
| Group | GAO | General Accounting Office | |
| FFT | Fast Fourier Transform | GBU | Guided Bomb Unit |
| FIFO | First In / First Out | GCA | Ground Controlled Approach |
| FIPR | Federal Information Processing | GCI | Ground Control Intercept |
| Resources | GENSER | General Service |
| fl | fluid | GEN-X | Generic Expendable |
| FLAK | AAA Shrapnel, from the German | GFE | Government Furnished Equipment |
| "Flieger Abwher Kanone" (AAA gun | GHz | GigaHertz |
| that fires fast and furiously) | GI | Government Issue |
| FLIR | Forward Looking Infrared | GIDEP | Government Industry Data Exchange |
| FLPS | Flightline Payload Simulator | Program | |
| FLT | Flight | GIGO | Garbage In / Garbage Out |
| FM | Frequency Modulation or Failure Mode | GOCO | Government Owned Contract Operated |
| FME | Foreign Material Exploitation | GP | General Purpose |
| FMEA | Failure Mode and Effects Analysis | GPI | Ground Plane Interference |
| FMS | Foreign Military Sale(s) | GPIB | General Purpose Interface Bus |
| FOC | Full Operational Capability | GPS | Global Positioning System |
| FOD | Foreign Object Damage | GSE | Ground Support Equipment |
| FORCECAP | Force Combat Air Patrol | | |
| FOT&E | Follow-On Test and Evaluation | | |
| FOTD | Fiber Optic Towed Device | | |
| FOUO | For Official Use Only | h | hours, hecto (102 multiplier), Plank's |
| FOV | Field of View | | constant, or height (also H) |
| FPA | Focal Plane Array | H | Height (also h), Henry (Inductance), or |
| fps | feet per second | | Irradiance |
| FRACAS | Failure, Reporting, Analysis, and | HARM | High-speed Anti-Radiation Missile |
| Corrective Actions System | HAWK | Homing All the Way Killer |
| FRB | Failure Review Board | HDBK | Handbook |
| FRD | Functional Requirements Document | HDF | High Duty Factor |
| FSD | Full Scale Development | HE | High Explosive |
| HEF | High Energy Frequency | IDECM | Integrated Defensive Electronic |
| (3x107 to 3x1014 GHz) | | Countermeasures |
| HEL | High Energy Laser | IEEE | Institute of Electrical and Electronic |
| HELO | Helicopter | | Engineers |
| HERF | Hazards of Electromagnetic Radiation | IF | Intermediate Frequency |
| to Fuel | IFF | Identification Friend-or-Foe |
| HERO | Hazards of Electromagnetic Radiation | IFM | Instantaneous Frequency Measurement |
| to Ordnance | IFR | Instrument Flight Rules |
| HERP | Hazards of Electromagnetic Radiation | IG | Inspector General |
| to Personnel | IIR | Imaging Infrared |
| HF | High Frequency (3 - 30 MHz) | I-Level | Intermediate Level of Repair (also "I" |
| HIL | Hardware-in-the-Loop | | Level) |
| HOJ | Home-On-Jam | ILS | Integrated Logistic Support, Instrument |
| HOL | Higher Order Language | | Landing System, or Inertial Locator |
| HP-IB | Hewlett-Packard Interface Bus | | System |
| HP-IL | Hewlett-Packard Interface Loop
| ILSMT | Integrated Logistic Support |
| HPM | High Powered Microwave | | Management Team |
| HPRF | High Pulse Repetition Frequency | IM | Intermodulation or Item Manager |
| hr | hour | IMA | Intermediate Maintenance Activity |
| HSDB | High Speed Data Bus | in | Inch |
| HUD | Heads-Up Display | INEWS | Integrated Electronic Warfare System |
| HV | High Voltage | INS | Inertial Navigation System |
| H/W | Hardware | INT | Intensity |
| HWIL | Hardware-in-the-loop | I/O | Input/Output |
| Hz | Hertz (Cycles per second) | IOC | Initial Operational (also Operating) |
| | | Capability |
| | IOT&E | Initial Operational Test and Evaluation |
| | IPO | International Projects (Program) Office |
| i | current (also I) | IPR | In-Progress/Process Review |
| I | Current (also i), Intensity, Irradiance, | IPT | Integrated Product (also Program) |
| Intermediate, or Roman Numeral for | | Team |
| One | IR | Infrared |
| IADS | Integrated Air Defense System | IR&D | Independent Research and |
| I&Q | In-Phase and Quadrature | | Development |
| IAS | Indicated Airspeed | IRCM | Infrared Countermeasures |
| IAW | In Accordance With | IRDS | Infrared Detecting System |
| IBIT | Initiated Built-in-Test | IREXP | IR Expendables |
| IBU | Interference Blanker Unit | IRIG-B | Inter-range Instrumentation Group B |
| IC | Integrated Circuit | IRLS | Infrared Line Scanner |
| ICD | Interface Control Document | IRS | Interface Requirements Specification, |
| ICMD | Improved Countermeasure Dispenser | | IR Suppression or Internal Revenue |
| ICNIA | Integrated Communication, Navigation, | | Service |
| Identification Avionics | IRST | Infrared Search and Track |
| ICS | Inverse Conical Scan or | ISAR | Inverse Synthetic Aperture Radar |
| Intercommunications System (aircraft) | ISO | Derived from the Greek "isos" meaning |
| ICW | In Compliance With | | "equal", the official title is International |
| ID | Identification | | Organization for Standardization |
| IDA | Institute For Defense Analysis | ISP | Integrated Support Plan |
| IDAP | Integrated Defensive Avionics Program | ISR | Interference to Signal Ratio (also I/S) |
| ITU | International Telecommunications | k | kilo (103 multiplier) or Boltzmann |
| Union | | Constant |
| IV&V | Independent Validation and | K | Kelvin, Cathode, Universal |
| Verification | | gravitational constant (also G), or |
| IW | Information Warfare | | Luminous efficacy |
| | KCAS | Knots Calibrated Airspeed |
| J | Jamming, Radiance, Current Density, | kg | kilogram |
| or Joules | kHz | KiloHertz |
| JAAS | Joint Architecture for Aircraft | KIA | Killed in Action |
| Survivability | KIAS | Knots Indicated Air Speed |
| JAFF | Jammer (illuminating) Chaff | km | Kilometer |
| JAG | Judge Advocate General | KSLOC | Thousand Source Lines of Code |
| JAMS | Jamming Analysis Measurement | | (software) |
| System | kt | Knot (nautical miles per hour) |
| JASSM | Joint Air-to-Surface Standoff Missile | kW | Kilowatt |
| JAST | Joint Advanced Strike Technology | | |
| JATO | Jet Assisted Takeoff or Jammer | | |
| Technique Optimization | l | length (also L) or liter |
| JC2WC | Joint Command and Control Warfare | L | Length (also l), Loss, inductance, |
| Center | | Luminance, or Roman Numeral for fifty |
| JCS | Joint Chiefs of Staff or Joint Spectrum | LADAR | Laser Detection and Ranging (i.e., laser |
| Center (formerly ECAC) | | radar) |
| JDAM | Joint Direct Attack Munition | LAN | Local Area Network |
| JED | Journal of Electronic Defense | LANTIRN | Low Altitude Navigation & Targeting |
| (Published by the Association of Old | | Infrared for Night |
| Crows) | LASER | Light Amplification by Stimulated |
| JEM | Jet Engine Modulation | | Emission of Radiation |
| JETS | Joint Emitter Targeting System | LAT | Latitude (0-90E N or S from equator) |
| JEWC | Joint EW Conference or Joint EW | lbs | pounds |
| Center (now JC2WC) | LCC | Life Cycle Cost(s) |
| JMR | Jammer | LCD | Liquid Crystal Display or Lowest |
| JOVIAL | Julius' Own Version of International | | Common Denominator |
| Algorithmic Language (Air Force | LCP | Left-hand Circular Polarization |
| computer programming language) | LDF | Low Duty Factor |
| JPATS | Joint Primary Aircraft Training System | LDS | Laser Detecting Set |
| J/S | Jamming to Signal Ratio | LED | Light-Emitting Diode |
| JSF | Joint Strike Fighter | LEX | Leading Edge Extension |
| JSGCC | Joint Services Guidance and Control | LGB | Laser Guided Bomb |
| Committee | LF | Low Frequency (30 - 300 kHz) |
| JSIR | Joint Spectrum Interference Resolution | LIC | Low Intensity Combat or Laser |
| (signal interference portion of MIJI) | | Intercept Capability |
| JSOW | Joint Stand-Off Weapon (AGM-154A) | LISP | List Processing (A programming |
| JSTARS | Joint Surveillance Target Attack Radar | | language used in artificial intelligence) |
| System | LLL | Low Light Level (as in LLL TV) |
| JTCG/AS | Joint Technical Coordinating Group for | lm | lumen (SI unit of luminous flux) |
| Aircraft Survivability | ln | Natural Logarithm |
| JTIDS | Joint Tactical Information Distribution | LO | Local Oscillator or Low Observable |
| System | LOA | Letter of Agreement (or Acceptance) |
| JV or J/V | Joint Venture | LOB | Line of Bearing (see also AOA) |
| LOG | Logarithm to the base 10 (also log) or | MAX | Maximum or Maximum aircraft power |
| Logistician | | (afterburner) |
| LONG | Longitude (0-180E E or W from | MBFN | Multiple Beam Forming Network |
| Greenwich, U.K.) | MC | Mission Computer |
| LOR | Level of Repair | MCP | Micro-Channel Plate |
| LORA | Level of Repair Analysis | MDF | Mission Data File |
| LORAN | Long Range Navigation | MDI | Multiple Display Indicator or Miss |
| LORO | Lobe on Receive Only | | Distance Indicator |
| LOS | Line-of-Sight | MDG | Mission Data Generator |
| LPAR | Large Phased-Array Radar | MDS | Minimum Discernible Signal or |
| LPD | Low Probability of Detection | | Minimum Detectable Signal |
| LPI or LPOI | Low Probability of Intercept | MDU | Multipurpose Display Unit |
| LPRF | Low Pulse Repetition Frequency | MF | Medium Frequency |
| LR | Lethal Range | | (300 kHz to 3 MHz) |
| LRA | Line Replaceable Assembly | MFD | Multifunction (video) Display |
| LRF | Laser Rangefinder | MG | Missile Guidance |
| LRIP | Low Rate Initial Production | MHz | MegaHertz (106 Hz) |
| LRU | Line Replaceable Unit | MIA | Missing in Action |
| LSA | Logistic Support Analysis | MIC | Microwave Integrated Circuit or |
| LSAR | Logistic Support Analysis Record | | Management Information Center |
| LSB | Least Significant Bit | MICRON | 10-6 meter |
| LSI | Large Scale Integration | MiG | Mikoyan-Gurevich (Soviet aircraft |
| LSO | Landing Signal Officer | | manufacturer) |
| LSSO | Laser System Safety Officer | MIGCAP | MiG Combat Air Patrol |
| LTBB | Look Through Blanking Bus | MIJI | Meaconing, Intrusion, Jamming, & |
| LWIR | Long Wave Infrared | | Interference (also see JSIR) |
| LWR | Laser Warning Receiver | mil | One-thousandth of an inch |
| lx | Lux (SI unit of illuminance) | MIL | Military power (100%, no afterburner) |
| LZ | Landing Zone | | or Military |
| | MILCON | Military Construction |
| | MILSPEC | Military Specification |
| | MILSTRIP | Military Standard Requisitioning and |
| m | milli (10-3 multiplier), meter, or | | Issue Procedure(s) |
| electron mass | MIMIC | Microwave Monolithic Integrated |
| M | Mega (106 multiplier), Male, Mach | | Circuit (also MMIC) |
| number, or Roman numeral for 1,000 | MIN | Minimum |
| MA | Missile Alert or Missile Active | MIPPLE | RWR display switching between |
| MAD | Magnetic Anomaly Detection (also | | ambiguous emitters |
| Detector) | MIPS | Millions of (Mega) Instructions Per |
| MADD | Microwave Acoustic Delay Device | | Second |
| MAF | Maintenance Action Form | ML | Missile Launch |
| MAG | Marine Aircraft Group or Magnetic | MLC | Main Lobe Clutter |
| MANPADS | Man-portable Air Defense System | MLV | Memory Loader Verifier |
| M&S | Modeling and Simulation | MLVS | Memory Loader Verifier Set |
| MASER | Microwave Amplification by Simulated | mm | Millimeter |
| Emission of Radiation | MM | Man Month |
| MATE | Modular Automatic Test Equipment | MMIC | Microwave Monolithic Integrated |
| MAW | Missile Approach Warning system | | Circuit (also MIMIC) |
| (also MAWS) or Marine Aircraft Wing | | |
| MMW | Millimeter Wave (40 GHz or higher per | n | nano (10-9 multiplier) or number of |
| IEEE, but commonly used down to 30 | | elements |
| GHz) | N | Noise, Newton (force), Radiance, |
| MOA | Memorandum of Agreement | | North, or No |
| MOAT | Missile on Aircraft Test (Phoenix test | n/a | Not Applicable (also N/A) |
| on F-14) | NA | Numerical Aperture |
| MOE | Measure of Effectiveness | NAC | Naval Avionics Center (now part of |
| MOM | Methods of Moments (also MoM) or | | NAWCAD) |
| Metal-Oxide-Metal | NADC | Naval Air Development Center (now |
| MOP | Modulation on Pulse or Measure of | | part of NAWCAD) |
| Performance | NADEP | Naval Aviation Depot |
| MOPS | Million Operations Per Second | NASA | National Aeronautics and Space |
| MOS | Minimum Operational Sensitivity, | | Administration |
| Military Occupational Specialty, Metal- | NATC | Naval Air Test Center (now part of |
| Oxide Semiconductor, or Measure of | | NAWCAD) |
| Suitability | NATO | North Atlantic Treaty Organization |
| MOSAIC | Modeling System for Advanced | NATOPS | Naval Air Training and Operating |
| Investigation of Countermeasures | | Procedures Standardization |
| MOU | Memorandum of Understanding | NAV | Navigation |
| MPD | Multi-Purpose Display or Microwave | NAVAIR | Naval Air Systems Command (also |
| Power Device | | NAVAIRSYSCOM) |
| MPE | Maximum Permissible Exposure | NAVSEA | Naval Sea Systems Command (also |
| mph | Miles per Hour | | NAVSEASYSCOM) |
| MPLC | Multi-Platform Launch Controller | NAWCAD | Naval Air Warfare Center Aircraft |
| MPM | Microwave Power Module | | Division (formerly Trenton, NADC, |
| MPPS | Million Pulses Per Second | | NAC, and NATC) |
| MPRF | Medium Pulse Repetition Frequency | NAWCWPNS | Naval Air Warfare Center Weapons |
| mr or mrad | Milliradian | | Division (formerly PMTC, NWC, |
| MRC | Maintenance Requirement Card or | | NWEF, and NOMTS) |
| Medium Range CAP | NBC | Nuclear, Biological, Chemical |
| MRE's | Meals Ready to Eat | NCTR | Non-Cooperative Target Recognition |
| ms | Milliseconds | NDI | Non-Developmental Item or Non |
| MSB | Most Significant Bit | | Destructive Inspection |
| MSI | Multi-Sensor (also Source) Integration, | NEI | Noise Equivalent Power |
| Management Support Issues, or | NEMP | Nuclear Electromagnetic Pulse |
| Medium Scale Integration | NEOF | No Evidence of Failure |
| MSIC | Missile and Space Intelligence Center
| NEP | Noise Equivalent Power |
| MSL | Mean Sea Level (altitude) or Missile | NF | Noise Figure or Noise Factor (also F) |
| MTBF | Mean Time Between Failures | NFO | Naval Flight Officer |
| MTI | Moving Target Indicator (or Indication) | NIPO | Navy International Program Office |
| MTTR | Mean Time To Repair | NIR | Near Infrared |
| MUXBUS | Multiplex Bus | NISC | Naval Intelligence Support Center
|
| MVS | Minimum Visible Signal | nm | nanometer or Nautical Mile (also NM |
| mw | Microwave | | or NMI) |
| mW | Milliwatt | NM or NMI | Nautical Mile (also nm) |
| MWIR | Mid Wave Infrared | NOHD | Nominal Ocular Hazard Distance |
| MWS | Missile Warning Set | NOMTS | Naval Ordnance Missile Test Station, |
| MY | Man Year | | White Sands, NM (now part of |
| | | NAWCWPNS) |
| NORAD | North American Air Defense Command | OSHA | Occupational Safety and Health Act |
| NPG or NPGS | Naval Post Graduate School | OSIP | Operational Safety Improvement |
| NRE | Non-Recurring Engineering | | Program |
| NRL | Naval Research Laboratory | OSM | Operating System Memory or SMA NRZ |
| Non Return to Zero | | connector made by Omni-Spectra NSA |
| National Security Agency | OT (&E) | Operational Test (and Evaluation) |
| nsec or ns | Nanosecond | OTD | Operational Test Director |
| NSN | National Stock Number | OTH | Over the Horizon |
| NSWC | Naval Surface Weapons Center | OTH-B | Over-the-Horizon Backscatter |
| nt | Nit (SI unit of luminance) | OTH-R | Over-the-Horizon Radar |
| NVG | Night Vision Goggles | OTH-T | Over-the-Horizon Targeting |
| NWC | Naval Weapons Center (China Lake) | OTRR | Operational Test Readiness Review |
| now part of NAWCWPNS | OUSD | Office of the Under Secretary of |
| NWEF | Naval Weapons Evaluation Facility, | | Defense |
| Albuquerque, NM (now part of | oz | ounce |
| NAWCWPNS) | | |
| NWIP | Naval Warfare Information Publication | | |
| NWP | Naval Warfare Publication | | |
| | p | pico (10-12 multiplier) or page |
| | P | Power, Pressure, or Peta (1015 |
| O | Optical | | multiplier) |
| OADR | Originating Agency's Determination | P3I | Pre-Planned Product Improvement |
| Required | Pa | Pascal (pressure) |
| OAG | Operational Advisory Group | PA | Public Address or Program Analyst |
| O&MN | Operations and Maintenance, Navy | PBIT | Periodic Built-in-Test |
| (also O&M,N) | PC | Pulse Compression, Personal |
| OBE | Overtaken (Overcome) By Events | | Computer, or Photoconductive |
| OCA | Offensive Counter Air | PCA | Physical Configuration Audit |
| OEWTPS | Organizational Electronic Warfare Test | PCM | Pulse Code Modulation |
| Program Set | Pd | Probability of Detection |
| OFP | Operational Flight Program | PD | Pulse Doppler |
| OJT | On-the-Job Training | PDI | PD Illuminator or Post Detection |
| O-Level | Organizational Level of Repair (also | | Integration |
| "O" Level) | PDP | Plasma Display Panel |
| OMA | Organizational Maintenance Activity | PDQ | Pretty Darn (sic) Quick |
| OMB | Office of Management and Budget | PDR | Preliminary Design Review |
| OMEGA | Optimized Method for Estimating | PDW | Pulse Descriptor Word |
| Guidance Accuracy (VLF Navigation | PEL | Personnel Exposure Limits |
| System) | PEM | Photoelectromagnetic |
| ONR | Office of Naval Research | PEO | Program Executive Officer |
| OOK | On-Off Keying | pf | Power Factor or Pico Farads |
| OPEVAL | Operational Evaluation | PFA | Probability of False Alarm |
| OPM | Office of Personnel Management | PGM | Precision Guided Munition |
| OPSEC | Operational Security | ph | Phot (unit of illuminance) |
| OPTEVFOR | Operational Test and Evaluation Force | Ph | Probability of Hit |
| OR | Operational Requirement or | pi | Greek letter π |
| Operationally Ready | Pi | Probability of Intercept (also POI) |
| ORD | Operational Requirements Document | PID | Positive Identification |
| OSD | Office of the Secretary of Defense | PIN | Personal Identification Number |
| PIP | Product Improvement Plan or Predicted | QC | Quality Control |
| Intercept Point | QED | Quod Erat Demonstradum (end of |
| Pixel | Picture Element | | proof)(Satirically "quite easily done") |
| Pk | Probability of Kill or Peak | QML | Qualified Manufacturer Listing |
| PLSS | Precision Location Strike System | QPL | Qualified Parts List |
| PM | Phase Modulation or Program Manager | QRC | Quick-Reaction Capability |
| PMA | Program (also Project) Manager, Air | QRD | Quick Reaction Demonstration |
| PMAWS | Passive Missile Approach Warning | QRT | Quick-Reaction test |
| System | | |
| PMT | Photomultiplier Tube | | |
| PMTC | Pacific Missile Test Center | | |
| (PACMISTESTCEN) - now part of | r or R | Radius or Range or Roentgen |
| NAWCWPNS | R | Resistance or Reliability |
| P-N | Positive to Negative Junction (also p-n) | rad | Radian |
| PN or P/N | Part Number | R&D | Research and Development |
| POC | Point of Contact | RADAR | Radio Detection and Ranging |
| POET | Primed Oscillator Expendable | RADHAZ | Radiation Hazard |
| Transponder | RAM | Random Access Memory, Radar |
| POI | Probability of Intercept (also PI) | | Absorbing Material, Rolling Airframe |
| POL | Polarization | | Missile, or Reliability, Availability, and |
| POM | Program Objective Memorandum | | Maintainability |
| POP | Pulse-on-Pulse or Product Optimization | R&M | Reliability and Maintainability |
| Program | R&R | Rest and Recuperation (Relaxation) | |
| POST | Passive Optical Seeker Technology | RAT | Ram Air Turbine |
| (Stinger missile) | RBOC | Rapid Blooming Offboard Chaff |
| PPI | Plan Position Indicator | RCP | Right-hand Circular Polarization |
| PPS | Pulses Per Second | RCS | Radar Cross Section |
| PRF | Pulse Repetition Frequency | RCVR | Receiver |
| PRI | Priority or Pulse Repetition Interval | RDT&E | Research, Development, Test, & |
| PROM | Programmable Read-only Memory | | Evaluation |
| PRR | Production Readiness Review or Pulse | RDY | Ready |
| Repetition Rate | RE | Radiated Emissions |
| PRT | Pulse Repetition Time | REC | Receive |
| Ps | Probability of Survival | RET | Return |
| P's & Q's | Pints and Quarts (small details) | RF | Radio Frequency |
| PSK | Phase-shift Keying | RFEXP | RF Expendables |
| PUPS | Portable Universal Programming | RFI | Radio Frequency Interference, Ready- |
| System | | For-Issue, or Request for Information |
| PV | Photovoltaic | RFP | Request for Proposal pw or |
| PW | Pulse Width | RFQ | Request for Quotation |
| PWB | Printed Wiring Board | RFSS | Radio Frequency Simulation System |
| | | (Army) |
| | RGPO | Range Gate Pull Off |
| | RGS | Range Gate Stealer |
| q | electron charge | RGWO | Range Gate Walk Off (see RGPO) |
| Q | Quantity Factor (figure of merit), | RHAW | Radar Homing and Warning Receiver |
| Quadrature, or Charge (coulomb), or | | or Radar Homing All the Way |
| aerodynamic pressure | RHAWS | Radar Homing and Warning System |
| QA | Quality Assurance | RINT | Radiation Intelligence |
| RIO | Radar Intercept Officer | SAR | Synthetic Aperture Radar, Special |
| RM | Radar Mile | | Access Required, Semi-Active Radar, |
| rms or RMS | Root Mean Square | | Search and Rescue, or Specific |
| RNG | Range | | Absorption Rate |
| ROC | Required Operational Capability | SATO | Scheduled Airline Traffic Office |
| ROE | Rules of Engagement | SATS | Semi-Active Test System |
| ROI | Return on Investment | SAW | Surface Acoustic Wave |
| ROM | Read-only Memory or Rough Order of | SBIR | Small Business Innovative Research |
| Magnitude | SCI | Sensitive Compartmented Information |
| ROR | Range Only Radar or Rate of Return | SCIF | Sensitive Compartmented Information |
| (financial) | | Facility |
| ROT | Rate of Turn | SCN | Specification Change Notice |
| ROWG | Response Optimization Working | SCRB | Software Configuration Review Board |
| Group | SCUBA | Self-Contained Underwater Breathing |
| RPG | Receiver Processor Group | | Apparatus |
| RPM | Revolutions per Minute | SCUD | Soviet short-range surface-to-surface |
| RPT | Repeat | | missile |
| RPV | Remotely Piloted Vehicle | SE | Support Equipment |
| RRT | Rapid Reprogramming Terminal (a | SDLM | Standard Depot Level Maintenance |
| type of MLVS) | SDI | Strategic Defense Initiative |
| RS | Radiated Susceptibility or Remote | Seabee | Someone in the Navy Construction |
| Station | | Battalion ("CB") |
| RSDS | Radar Signal Detecting Set | SEAD | Suppression of Enemy Air Defense |
| RSO | Range Safety Officer or Receiver, Set- | | (pronounced "seed" or "C add") |
| on | SEAL | Sea-Air-Land (Navy special forces) |
| RST | Receiver Shadow Time | sec | seconds (also S or s) |
| RT | Remote Terminal, Termination | SECDEF | Secretary of Defense |
| Resistance, or Receiver/Transmitter | SEI | Specific Emitter Identification |
| (also R/T) | SEMA | Special Electronic Mission Aircraft
|
| RUG | Radar Upgrade | SERD | Support Equipment Recommendation |
| RWR | Radar Warning Receiver | | Data |
| Rx | Receive | SHAPE | Supreme Headquarters Allied Powers |
| | | Europe (NATO military command) |
| | SHF | Super High Frequency (3 to 30 GHz) |
| | SI | Special Intelligence or System |
| | | International (Units) |
| | SIF | Selective Identification Feature |
| s, S, or sec | seconds | SIGINT | Signals Intelligence |
| S | Signal Power, Surface Area, Secret, | SIJ | Stand-In Jamming (also S/J) |
| Electrical conductance (siemens), | SIM | Simulation |
| South, Scattering (as in S-parameters), | sin | Sine |
| or Seconds | SINCGARS | Single Channel Ground and Airborne |
| SA | Situational Awareness, Semi-Active, | | Radio System |
| Spectrum Analyzer, or Surface-to-Air | SIRFC | Suite of Integrated RF |
| (also S/A or S-A) | | Countermeasures (includes ATRJ and |
| SA-() | Surface-to-Air missile number () | | ATIRCM) |
| SAE | Society of Automotive Engineers | SJ | Support Jamming |
| SAM | Surface-to-Air Missile | S/J | Stand-In Jamming or Signal to |
| SA-N-() | Naval Surface-to-Air missile number () | | Jamming Ratio |
| SL | Side lobe or Sea Level (also S.L.) | SSBN | Nuclear Ballistic Missile Submarine |
| SLAM | Standoff Land Attack Missile | SSGN | Nuclear Guided Missile Submarine |
| SLAR | Side-Looking Airborne Radar | SSI | Small Scale Integration |
| SLC | Side Lobe Clutter | SSJ | Self Screening Jamming |
| SLOC | Source Lines of Code or Sea Lines of | SSM | Surface-to-Surface Missile |
| Communication | SSN | Nuclear Attack Submarine |
| SM | Statute Mile (also sm) or Standard | SSRO | Sector Scan Receive Only |
| Missile | SSW | Swept Square Wave |
| SMA | Scheduled Maintenance Action or Sub- | S&T | Science and Technology |
| Miniature A connector | STANAG | Standardization Agreement (NATO) |
| SMC | Sub-Miniature C connector | STAR | System Threat Assessment Report |
| SML | Support Material List | stat | Statute |
| SMS | Stores Management Set or Status | STBY | Standby |
| Monitoring (sub-) System | STC | Sensitivity Time Control or Short Time |
| S/N or SNR | Signal-to-Noise Ratio | | Constant or SHAPE Technical Center
|
| SNORT | Supersonic Naval Ordnance Research | STD | Software Test Description, Standard, or |
| Track | | Sexually Transmitted Disease |
| SNTK | Special Need to Know | STOVL | Short Takeoff and Vertical Landing |
| SOF | Safety of Flight | STP | Software Test Plan, or Standard |
| SOJ | Stand-off Jammer | | Temperature and Pressure (0EC at 1 |
| SONAR | Sound Navigation and Ranging | | atmosphere) |
| SOO | Statement of Objectives (replacing | STR | Software (also System) Trouble Report |
| SOW) | STT | Single Target Track |
| SOP | Standard Operating Procedures | STU | Secure Telephone Unit |
| SORO | Scan-on-Receive Only | SUBSAM | Subsurface-to-Air Missile |
| SOS | "Save Our Ship" (distress call with easy | SUT | System Under Test |
| Morse code, i.e. C C C • • • C C C ) | S/W | Software (also SW) |
| SOW | Statement of Work (being replaced by | SWC | Scan With Compensation |
| SOO) | SWM | Swept Wave Modulation |
| SPAWAR | Space and Naval Warfare Systems | SYSCOM | Systems Command |
| Command | | |
| SPEC | Specification | | |
| SPIRITS | Spectral Infrared Imaging of Targets | | |
| and Scenes | t | Time (also T) |
| SPO | System Program Office | T | Time (also t), tera (1012 multiplier), |
| SPY | Radar on an AEGIS ship | | Temperature, or Telsa |
| sq | Square | TA | Target Acquisition or Terrain |
| sr | Steradian | | Avoidance |
| SRA | Shop Replaceable Assembly | TAAF | Teat, Analyze, and Fix |
| SRAM | Static Random Access Memory | TAC | Tactical Air Command (Air Force) |
| SRB | Software Review Board | TACAIR | Tactical Aircraft |
| SRBOC | Super Rapid Blooming Offboard Chaff | TACAMO | Take Charge and Move Out (airborne |
| SRD | Systems Requirements Document | | strategic VLF communications relay |
| SRS | Software Requirements Specification | | system) |
| SRU | Shop Replaceable Unit | TACAN | Tactical Air Navigation |
| SSA | Software (also Special or System) | TACDS | Threat Adaptive Countermeasures |
| Support Activity, Source Selection | | Dispensing System |
| Activity, or Solid State Amplifier | TACTS | Tactical Aircrew Combat Training |
| SSB | Single Side Band | | System |
| TAD | Threat Adaptive Dispensing, | TPWG | Test Plan Working Group |
| Temporary Additional (also Active) | TQM | Total Quality Management |
| Duty, or Tactical Air Direction | T/R | Transmit / Receive |
| T&E | Test & Evaluation | TRB | Technical Review Board |
| TALD | Tactical Air Launched Decoy | TRD | Test Requirements Document |
| TAMPS | Tactical Automated (formerly Aircraft) | TREE | Transient Radiation Effects on |
| Mission Planning System | | Electronics |
| TAR | Target Acquisition Radar or Training | TRF | Tuned Radio Frequency |
| Administrative Reserve | TRR | Test Readiness Review |
| TARPS | Tactical Air Reconnaissance Pod | TS | Top Secret |
| System (used on F-14) | TSS | Tangential Sensitivity |
| TAS | True Airspeed | TSSAM | Tri-Service Standoff Attack Weapon |
| TAWC | Tactical Air Warfare Center (Air Force) | TT | Target Track |
| TBA | To Be Announced | TTI | Time To Impact/Intercept |
| TBD | To Be Determined | TTG | Time-to-Go |
| TBMD | Theater Ballistic Missile Defense | TTL | Transistor-Transistor Logic |
| TD | Technical Directive (also Director) | TTR | Target Tracking Radar |
| TDD | Target Detection Device | TV | Television |
| TDM | Time Division Multiplexing | TVC | Thrust Vector Control |
| TE | Transverse Electric | TWS | Track While Scan or Tail Warning |
| TEA | Technology Exchange Agreement | | System |
| TEAMS | Tactical EA-6B Mission Support | TWSRO | Track While Scan on Receive Only |
| TECHEVAL | Technical Evaluation | TWT | Travelling Wave Tube |
| TEL | Transporter Erector Launcher | TWTA | Travelling Wave Tube Amplifier |
| TEM | Transverse Electromagnetic | Tx | Transmit |
| TEMP | Test and Evaluation Master Plan | TYCOM | Type Commander |
| TEMPEST | Not an acronym. Certification of | | |
| reduced electromagnetic radiation for | | |
| security considerations | u | micron / micro (10-6 multiplier) |
| TERPES | Tactical Electronic Reconnaissance | U | Unclassified, Unit, or Unknown (on |
| Processing and Evaluation System | | RWR display) |
| TGT | Target | UAV | Unmanned (also uninhabited) Air (or |
| TIM | Technical Interchange Meeting | | Aerial) Vehicle |
| TM | Telemetry, Transverse Magnetic, or | UCAV | Uninhabited Combat Air Vehicle (new |
| Technical Manual | | USAF term for UAV) |
| TMD | Theater Missile Defense | UDF | User Data File |
| TNC | Threaded Navy Connector | UDFG | User Data File Generator |
| TOA | Time of Arrival | UDM | User Data Module |
| TOJ | Track on Jam | UHF | Ultra High Frequency |
| TOO | Target of Opportunity (HARM | | (300 MHz to 3 GHz) |
| operating mode) | ULF | Ultra Low Frequency (3 to 30 Hz) |
| TOR | Tentative (also Tactical) Operational | Fm | Micrometer |
| Requirement or Time of Receipt | UN | United Nations |
| TOS | Time on Station | UNK | Unknown (also U) |
| TOT | Time on Target | UPS | Uninterruptable Power Supply |
| TOW | Tube-Launched, Optically-Tracked, | us or Fs | Microseconds |
| Wire-guided | U.S. | United States |
| TPI | Test Program Instruction | USA | United States of America or United |
| TPS | Test Program Set or Test Pilot School
| | States Army |
| USAF | United States Air Force | wb | Weber (magnetic flux) |
| USMC | United States Marine Corps | WBS | Work Breakdown Structure |
| USN | United States Navy | WC | Waveguide, circular |
| UTA | Uninhabited Tactical Aircraft | WGIRB | Working Group on Infrared |
| UUT | Unit Under Test | | Background |
| UV | Ultraviolet | WIA | Wounded in Action |
| | WORM | Write Once Read Many (times) (Refers |
| | | to optical disks) |
| v | Volts (also V), Velocity (also V or vt) | WOW | Weight on/off Wheels (also WonW or |
| V | Volts (also v), Velocity (also v or vt), | | WoffW) |
| Volume, or Roman Numeral for five | WPAFB | Wright-Patterson Air Force Base |
| VA | Veterans Administration, Volt- | WPN | Weapons Procurement, Navy or |
| Amperes, or prefix for a Navy attack | | Weapon |
| squadron | WR | Waveguide, rectangular |
| VAQ | Prefix for Navy (or Marine) tactical | WRA | Weapon Replaceable Assembly |
| EW squadron | WRD | Waveguide, rectangular double ridged |
| V&V | Validation and Verification | WSSA | Weapons System Support Activity |
| VCO | Voltage Controlled Oscillator | WVR | Within Visual Range |
| Vdc or VDC | Volts Direct Current | | |
| VDT | Video Display Terminal | | |
| VECP | Value Engineering Change Proposal | x | Multiplication symbol |
| VF | Prefix for Navy fighter squadron | X | Reactance, Experimental, |
| VFO | Variable Frequency Oscillator | | Extraordinary, Roman Numeral for ten, |
| VFR | Visual Flight Rules | | or X axis |
| VGPO | Velocity Gate Pull Off | X-EYE | Cross Eye |
| VGS | Velocity Gate Stealer | XO | Executive officer |
| VGWO | Velocity Gate Walk Off | X-POL | Cross Polarization |
| VHF | Very High Frequency (30 - 300 MHz) | XMIT | Transmit |
| VHSIC | Very High Speed Integrated Circuit | | |
| VID | Visual Identification | | |
| VLF | Very Low Frequency (3 to 30 kHz) | Y | Yes or Y-Axis |
| VLSI | Very Large Scale Integration | YAG | Yttrium-Aluminum Garnet |
| VLSIC | Very Large Scale Integrated Circuit | yd | Yard |
| VP | Prefix for Navy patrol squadron | YIG | Yttrium-Iron Garnet |
| VQ | Prefix for Navy special mission | | |
| (usually reconnaissance) squadron | | |
| VRAM | Video Random Access Memory | Z | Impedance, Zenith, or Z-Axis |
| VS or vs | Velocity Search or Versus (also vs.) | | |
| V/STOL | Vertical/Short Take-off and Landing | | |
| (also VSTOL) | 1xLR, 2xLR | One (or two or three etc.) Times Lethal |
| vt | Velocity (also V or v) | | Range |
| VTOL | Vertical Takeoff and Landing | 1v1 or 1-v-1 | One versus One (Aerial engagement) |
| VSWR | Voltage Standing Wave Ratio | | |
| VVA | Voltage Variable Attenuator | | |
| | 2D | Two Dimension |
| W | Watts, Weight, or West | 3D | Three Dimension |
| W&T | Warning & Targeting | 3M | Navy Maintenance and Material |
| WARM | Wartime Reserve Mode | | Management System |
Kirt
