|
 |
 |
| A | Ampere | |
| a | Linear acceleration | |
| A I | Action Information/Artificial Intelligence/Airborne Interception | |
| A of I | Area of Interest | |
| A/C | Aircraft | |
| A1 Area or AIA | Automatic Initiation Area | |
| A10 | Action Information Organisation | |
| AA | Anti-AircraftIActive AreaIArtificial Aerial | |
| AA(P) | Anti-Aircraft Practice (Shell Type) | |
| AAC | Attack Area Centre | |
| AAFC | Anti-Aircraft Fire Control | |
| AAGL | Anti-Aircraft Gun-laying by Radar | |
| AAIN | Active AreaJNarrow Band | |
| AAM | Air-to-Air Missile | |
| AAR | Air-to-Air Refueling | |
| AAW | An ti-Air Warfare | |
| AAWC | Anti-Air Warfare Commander/Coordinator | |
| AAWO | Anti-Air Warfare Officer | |
| AAWS | Anti-Air Warfare Ship | |
| AB (R) | Able-Seaman (Radar) | |
| AB(S) | Able-Seaman (Sonar) | |
| ABK | Airborne Identification Kit (transponder) | |
| abs | Absolute | |
| AC | Air Co-ordinator/Alternating Current/Accumulator/Automatic or Analogue Computer | |
| AC | Alternating Current | |
| AC(H)A | Aircraft Controller (Helicopter) Assistant | |
| AC(L) | Aircraft Controller (LRMP Aircraft) | |
| AC(W | Aircraft Con troller (Helicopter) | |
| ACC | Air Control Centre | |
| ACCHAN | Allied Commander Channel | |
| Accn | Acceleration | |
| Accy | Accuracy | |
| ACE | Airbus Concurrent Engineering | |
| ACE | Allied Command Europe | |
| ACE | Achieving Customer Excellence | |
| ACH | Anti-Condensation Heater | |
| AcknIAck | Acknowledge | |
| ACO | Admiralty Compass Observatory | |
| ACORN | Automatic Checkout and Recording Equipment | |
| ACP | Allied Communication Publication | |
| AcP | Action Plot | |
| AcPC | Action Plot Compiler | |
| AcPR | Action Plot Reporter | |
| AcPS | Action PictureIPlot Supervisor | |
| AcqIAcqd | AcquireIAcquired | |
| ACR | Audio Cassette Recorder or Approach (airfield) Control Radar | |
| ACRE | Automatic Checkout and Readiness Equipment | |
| Act | Action | |
| ACU | Automatic Calling Unit | |
| ACW | Anti-Carrier Warfare | |
| AD | Air Defence/Aircraft Director/Average Deviation | |
| ADA | Air Defence Artillery or Action Data Automation | |
| ADAPT | A Data Passing and Transformation System | |
| ADAWS | Action Data Automated Weapon System | |
| ADC | Analogue to Digital Converter | |
| ADC | Analogue to Digital Converter | |
| ADD | Acoustic Deception Device | |
| Add / Addr | Address | |
| Add1 | Additional | |
| ADDAM | ASWE Distribution Database Manager | |
| ADDAR | Automatic Digital Data Acquisition and Recording | |
| ADF | Automatic Direction Finder | |
| ADL | Alternative Data Link | |
| ADLIPS | Automatic Data Link Plotting System | |
| ADNET | Action Data Network | |
| ADOC | Air Defence Operations Centre | |
| ADP(C) | Automatic Data Processing (Centre) | |
| ADP/A Dat P | Automatic Data Processing | |
| ADPS | Automatic Display and Plotting System | |
| ADR | Aircraft Direction Room; Air Defence Region | |
| ADS1 | Allied Data Systems Inoperability Agency | |
| ADV | Air Defence Variant | |
| Ae | Aerial | |
| AEA | Atomic Energy Authority | |
| AECMA | Association Européenne des Constructeurs de Materiel Aerospatial | |
| AECMA | European Association of Aerospace Industries | |
| AEE | Atomic Energy Establishment | |
| AeIGT | Aerospace Innovation and Growth Team | |
| AEL | Automatic Emergency Lanterns | |
| AEP | Auto Extraction Package | |
| AESP | Advanced Engineering Skills Project | |
| AEW | Airborne Early Warning | |
| AF | Audio Frequency | |
| AFC | Automatic Frequency Control | |
| AFDEC | Association of Franchised Distributors of Electronic Components | |
| AFS | Atomic Frequency Standard | |
| AFT | Advanced Flying Training | |
| AGC | Automatic Gain Control | |
| Agg | Agglomeration | |
| AGI | Auxiliary Gathering Information | |
| AGL | Automatic Gun Laying by Radar | |
| Ah | Ampere-hour | |
| AHQ | Air I-Ieadquarters | |
| AIR | Scope - 5" Display CRT on Target Acquisition Unit | |
| AJ | Anti-Jamming | |
| AKA | Also known as | |
| AKA | Also Known As | |
| ALCU | Acoustic Link Control Unit | |
| ALLOC | Allocate | |
| ALO | Air Liaison Officer | |
| Alt | Altitude | |
| Altn | AlternateJAlternative | |
| ALU | Arithmetic and Logic Unit | |
| ALU | Arithmetic Logic Unit | |
| Am | Acknowledge Character | |
| AM(C) | Automatic Modulation (Control) | |
| Ammo | Ammunition | |
| Amp | Amplification/Ampere | |
| AMTE | Admiralty Marine Technology Establishment | |
| AMTI | Airborne Moving Target Indication | |
| AN1 | Automatic Number Identification | |
| ANCA | Allied Naval Communications Agency | |
| ANDVT | Advanced Narrow band Digital Voice Terminal | |
| ANSI | American National Standards Institute | |
| AOA | Amphibious Objective/Operations Area or Area of Assault | |
| AOB | Any Other Business | |
| AOI | Area of Interest | |
| AOO | Amphibious Operations Officer | |
| AOR | Assault/Amphibious Operations Room or Auxilliary Oiler Replenishment Vessel | |
| AP | Aim Point / Armour Piercing | |
| APA | Automatic Performance Assessment | |
| APC | Air Picture Compiler/Automatic Phase Control | |
| APD | Avalanche Photodiode | |
| APDA | Aim Point Data Area | |
| APEX | Automatic Plot Extractor | |
| API | Application Programming Interface | |
| API | Air Position Indicator | |
| App | Approval | |
| APR | Air Picture Reporter | |
| APR(L) | Air Picture Reporter (Local) | |
| APS | Air Picture Supervisor | |
| APT | Automatically-programmed machine tool/Automatic Picture Transmission | |
| APU | Applied Psychology Unit | |
| APV | Average Projectile Velocity | |
| AQUAS | Army Quartermaster Unit Accounting System | |
| ARGUS | Automatic Routine Generating and Updating System | |
| ARL | Admiralty Research Laboratory | |
| ARM | Anti-Radiation Missile | |
| ARP | Address Resolution Protocol | |
| ARP | Airborne Reporting Post | |
| ARPA | US Defence, Advanced Research Projects Agency | |
| ARQ | Automatic Request for Repetition | |
| ARRCS | Air Raid Reporting Control Ship | |
| Arty | Artillery | |
| ARU | Acoustic Resistance Unit | |
| ASAU | Air Search Attack Unit | |
| ASB | Automatic Airborne Search Radar | |
| ASCII | American Standard Code for Information Interchange | |
| ASH | ASWE Serial Highway | |
| ASIC | Application Specific Integrated Circuits | |
| ASIT | Adaptable Software Interface Terminal | |
| ASLO | Air Support Liaison Officer | |
| ASM | Anti-Ship MissileIAir to Surface Missile | |
| ASMD | Anti-Ship Missile Defence | |
| ASOC | Air Support Operations Centre | |
| ASP | Average Selling Price | |
| ASP | Automatic Servo Plotter | |
| ASPID | Airborne Surface Plot in Direction | |
| ASR | Automatic Send Receive | |
| ASRAPs | Acoustic Sensor Range Prediction System | |
| ASRE | Admiralty Signal and Radar Establishment at Portsdown | |
| ASROC | Anti-Submarine Rocket | |
| ASRT | Air Support Radar Team | |
| Ass | Assumed | |
| ASS | AirIAviation Support Ship | |
| ASSM | Anti-Surface-to-Surface Missile | |
| Assoc | Associated | |
| AST | Atlantic Standard Time | |
| ASTOR | An ti-Submarine Torpedo | |
| Astro | Astronomic | |
| ASVW | Anti Surface Vessel Warfare | |
| ASW | Anti-Submarine Warfare/Anti-Submarine Weapon(s) | |
| ASWACU | Anti-Submarine Warfare Air Control Unit | |
| ASWC | Anti-Submarine Warfare Co-ordinator | |
| ASWCCCS | Anti-Submarine Warfare Commanders Command and Control System | |
| ASWD | Anti- Submarine Warfare Director | |
| ASWE | Admiralty Surface Weapons Establishment | |
| ASWIXS | Anti-Submarine Information Exchange System | |
| AT | Alert Threshold | |
| ATA | Air Transport Association of America | |
| ATAC | Airborne Transportable Acoustic Communication | |
| ATB | All Time Buy | |
| ATB | Aerial True Bearing | |
| ATC | Antenna (or Aerial) Turning Control (or capacitor) / Air Traffic Control | |
| ATCO | Air Traffic Control Officer | |
| ATDMA | Advanced Time Division Multiple Access | |
| ATDS | Air Tactical Data System | |
| ATE | Automatic Test Equipment | |
| ATH | Actual Torpedo Heading | |
| ATM | Asynchronous Transfer Mode | |
| ATP | Allied Tactical Publications | |
| ATR | Audio Tape RecorderIAnti-Transmit-Receive | |
| ATT | Anti Torpedo Torpedo | |
| Att | Attack | |
| Attn | Attention | |
| Auth | Authority | |
| Auto | Automatic | |
| Auto Bifur | Autobifurcation (track splitting) | |
| AUTOCAT | Automatic Radio Relay fitted in Aircraft | |
| Aux | Auxilliary | |
| AV | Air Vessel | |
| Avail | Available(- bility) | |
| AVC | Automatic Vehicle Control | |
| AVC | Automatic Volume Control | |
| AW | Above Water/Amphibious Warfare | |
| AW Admin | Amphibious Warfare Administrative | |
| AWACS | Airborne Warning and Control System | |
| AWE | Atomic Weapons Establishment | |
| AWFC | Above Water Fire Control (Gunfire control element of WSA 423) | |
| AWO | Advanced Warfare Officer | |
| AWRE | Atomic Weapons Research Establishment | |
| AWS-4 | Air Surveillance Radar (S-band) | |
| AWW | Above Water WarfareIAbove Water Weapons | |
| AWWD | Above Water Warfare Direction | |
| AWWO | Above Water Weapons Officer | |
| B | Bearing | |
| B and D | Bearing and Distance | |
| B and H | Bearing and Height | |
| B and R | Bearing and Range | |
| B and R | Bearing and Range | |
| B and S | Bearing and Sight Angle | |
| B and S | Bearing and Sight Angle | |
| B Scope' | 7" Display CRT on Target Acquisition Unit | |
| B/A | Beam Approach | |
| BABS | Blind Approach Beacon System | |
| BAC | Binary Asymmetric Channel | |
| BAI | Battlefield Air Interdiction | |
| Bal Temp | Ballistic Temperature | |
| Ball | Ballistic | |
| Ball Corr | Ballistic Correction | |
| Balmet | Ballistic Meteorological Message | |
| BALTAP | Baltic Approaches | |
| BAR | Blocked Archive | |
| BAR | Buffer Address Register | |
| BATES | Battlefield Artillery Target Engagement System | |
| BBC | Broadband Chaff (Decoy) | |
| BC or Bal Corr | Ballistic Coefficient | |
| BCAL | Bearing Calibration | |
| BCC | Block Character Check | |
| BCC | Ballistic Coefficient Correction | |
| BCD | Binary Coded Decimal | |
| BCE | Best Case Equivalent | |
| Bcn | Beacon | |
| BCO | Bombardment Control Officer | |
| BCRT | Bright Cathode Ray Tube | |
| BCS | British Computer Society | |
| BCW | Buffer Control Word | |
| Bd Band | Broad Band (Chaff) | |
| Bde | Brigade Headquarters | |
| BEMA | The Bristol and Western Engineering Manufacturers' Association | |
| BETA | Business Excellence Through Action | |
| BFO | Beat Frequency Oscillator | |
| BFP | Bearing Frequency Plot | |
| BGA | Ball Grid Array | |
| BHP | Brake Horse Power | |
| BID | UK Cryptographic Equipment Designator | |
| BIOS | Basic Input/Output System | |
| BIST | Built In Self Test | |
| BIT | Binary Digit | |
| BIT | Built-in Test | |
| BITE | Built- in Test Equipment | |
| BLOS | Beyond Line of Sight | |
| BLW | Business Link West | |
| BM | Bosuns Mate | |
| BMA | Brigade Maintenance Area | |
| Bmbr | Bomber | |
| BMEWS | Ballistic Missile Early Warning System | |
| Bn | Beacon | |
| BOA | Bearing Only Analysis | |
| BOC | Battalion Operations Centre | |
| BOF | Bought Out Finished | |
| BOF | Beginning of File | |
| BOGUN | Bofors 40L70 Gun | |
| BOL | Bearing Only Launch | |
| BOM | Bill of Materials | |
| BOT | Beginning of Tape | |
| BOTL | Beginning of Tape Label | |
| BPCS | SW | Basic Process Control System or Basic Plant Control System |
| BPI | Bits per Inch | |
| BPS | Bits Per Second | |
| bps, b/s | Bits per Second | |
| BPS0 | Blind Pilotage Safety Officer | |
| BR | Book of Reference | |
| BRG | Bearing | |
| Brill | Brilliance/Brightness | |
| BRITMISS | British Maritime Intelligence Support System | |
| Brng/Brg/Bng | Bearing | |
| BS | British Standard/Binary Subtract | |
| BSA | Beach Support Area | |
| Bse Co | Base Course | |
| Bse Srge Enjur | Base Surge Endurance | |
| BSI | British Standards Institution | |
| BSP | Board Support Package | |
| BST | British Standard Time | |
| BT | Back Tracks | |
| BT (key) | Back Tracks Key | |
| BW | Below Water/Band Width | |
| BWW | Below Water Warfare | |
| BZ | Bravo Zulu | |
| C | Course | |
| C and C | Command and Control | |
| C and S | Course and Speed | |
| C of G | Centre of Gravity | |
| C/I | Cross Index | |
| C/N | Carrier/Noise | |
| C/O | Change Over | |
| c/s | Cycles per Second | |
| C/S | Callsign | |
| C2 | Command & Control | |
| C3 | Command Control & Communications | |
| C31 | Command Control Communication & Intelligence | |
| C8C | Corrected Ballistic Correction | |
| CA | Collision Avoidance | |
| CAA | Civil Aviation Authority | |
| CAAIS | Computer Assisted Action Information System | |
| Cab | Cabinet | |
| CACS | Command and Control System/Computer Assisted Command System | |
| CAD | Computer Aided Design | |
| CADF | Commu tated Aerial Direction-Finding | |
| CAE | Computer Aided Engineering | |
| CAFD | Contact Analogue Flight Display | |
| CAGE | Commercial And Government Agency | |
| CAH | Carrier (Attack) Helicopter | |
| CAI/O | Computer Analogue Input/Output | |
| Cal | Calibrate(-ion) | |
| CAL | Computer Aided Learning | |
| CAM | Computer Aided Manufacturing | |
| CAM | Central Address Memory | |
| CAP | Combat Air Patrol/Close Air Patrol | |
| CAR | Central Apparatus Room/Channel Address Register | |
| CART | Computerised Auromatic Rating Technique | |
| CAS | Calibrated Air Speed/Close Air Support Ship | |
| CASC | Civil Avionics Systems Committee | |
| CASE | SW | Computer Aided Software Engineering |
| CASEVAC | Casualty Evacuation | |
| CASG | Civil Avionics Support Group | |
| CASWTD | Constant Angle of Sight with Terminal Dive | |
| CAT | Customer Acceptance Test | |
| CAT | SW | Customer Acceptance Test |
| Cat | Category | |
| CAT | Cooled-Anode Transmitting Valve | |
| Cat (key) | Secondary Category Symbols & Link Release Marker Symbols key | |
| CATE | Computer Assisted Threat Evaluation | |
| CATF | Commander Amphibious Task Force | |
| CAV | Cavity Resonance | |
| CAW | Channel Address Word | |
| CB | Central Battery System | |
| CB | Circuit Breaker | |
| CBI | Compound Batch Identification | |
| CBMS | Computer Based Message System | |
| CBS | Central Battery Signalling System | |
| CC | Closed Circuit (transmission) | |
| CCA | Carrier Controlled Approach | |
| CCD | Charged Coupled Device/ Computer-Controlled Display | |
| CCDL/TL/FL | Common Data Descriptioin/Translation/Format Language | |
| CCG | Cartesian Coordinate Grid | |
| CCIR | Consultative Committee on International Radio | |
| CCIS | Command and Control Information System | |
| CCITT | (In French) International Telephone & Telegraph Consultative Committee | |
| CCITT | Consultative Committee for International Telephony and Telegraphy | |
| CCM | Computer Controlled Market | |
| CCR | Central Control Room | |
| CCS | Collective Call Sign | |
| cct/CCTS | Circuit/Circuits | |
| CCTV | Closed Circuit Television | |
| ccw | Counter-Clockwise | |
| CCY | Chief Communications Yeoman | |
| CCY | Chief Communications Yeoman | |
| CD | Collision Detection | |
| CD | Compact Disc | |
| CDCE | Central Data Conversion Equipment | |
| CDF | Competitive Development Fund | |
| CDH | Command and Data Handling/Command Display Highway | |
| CDMA | Code Division Multiple Access | |
| CDP | Communication Data Processor | |
| CDP | Configurator Data Processor | |
| CDPI | Chief of Defence Procurement Instruction | |
| Cdr | Commander (Rank) | |
| CDT | Control Data Terminal | |
| CDU | Coastal Defence Radar/Central Display Unit | |
| CDX | Control Differential Transmitter | |
| CE | Consumer Electronics | |
| CECC | CENELEC Electronic Components Committee | |
| CECC CAUG | CECC Civil Avionics User Group | |
| CEMCONS | Centralised Emission Control System | |
| CEP | Circular Error Probability/Contact Evaluation Plot | |
| CERT SUB | Certain Submarine | |
| CESG | Communications and Electronic Support Group | |
| CF | Check Fire | |
| CFAR | Constant False Alarm Rate | |
| CFC | Chloro Fluoro Carbon | |
| cfm/s | Cubic Feet Per Minute/Second | |
| CFR | Continued from Previous Track (block) | |
| CFSB | Computer Fire Stand-by | |
| cg | Centre of Gravity | |
| CGB | Convert Gray to Binary | |
| CH | Charthouse | |
| Ch | Channel | |
| CHAMP | Commando Helicopter Aid to Mission Planning | |
| CHAN | Channel | |
| Chan | Channel | |
| CHOSC | Commando Helicopter Operations Support Coordinator | |
| CI | Configuration Item | |
| CI | SW | Configuration Item |
| CIB(P) | Command Incident Board (Plotter) | |
| CIC | Combat Information Centre | |
| CIE | Computer Interrupt Equipment | |
| CIO | Central Input/Output Multiplex | |
| CIP | Competitiveness Improvement Programme | |
| CIS | Combat Information System | |
| CISC | Complex Instruction Set Computer | |
| CIT | Call-in Time | |
| Civ | Civil Aircraft | |
| CIWS | Closed in Weapon System | |
| CK | Check | |
| CKO | Check Operator | |
| CLAP | Close Air Picture | |
| Class | Classified/Classification | |
| CLF | Commander Land Forces | |
| CLI | Command Line Interface | |
| CLR | Computer Language Recorder | |
| Clr | Clear | |
| CLT | Computer Language Translator/Communication Line Terminal | |
| CM | Configuration Management | |
| CM | SW | Configuration Management |
| CM | Control Mark/Computer Module | |
| CMC | Contract Marking/Breaking Clock | |
| Cmd (Class) | Command (Classification) | |
| Cmd Post | Command Post (Airborne) | |
| Cmd/Commd | Command | |
| Cmdr | Commodore | |
| CML | Current Mode Logic | |
| CMP | Configuration Management Plan | |
| CMP | SW | Configuration Management Plan |
| cmp | Computational | |
| Cmptr | Computer | |
| CMR | Continuous Maximum Rating of Equipment/Common Mode Rejection | |
| CMS | Combat Management System | |
| CMV | Corrected Muzzle Velocity | |
| CNL | Circuit Net Loss | |
| CNOCS | See NOCSG | |
| CNR | Carrier/Noise Power Ratio | |
| Co | Course | |
| COC | Combat Operating Centre | |
| CODAR | Correlation Detector Analysis | |
| CODEC | Coder/Decoder | |
| CODIC | Computer Directed Communications | |
| CODIT | Computer Direct to Telegraph | |
| COE | Centre of Excellence | |
| COG | Captain of Gunbay/Clutter Operated Gate | |
| COG | Component Obsolescence Group | |
| COG | Chip on Glass | |
| COGB | Certified Official Government Business | |
| COL | Computer-Orientated Language | |
| Coll | Collate | |
| Comb | Combination | |
| COMBEXAG | Combined Exercise Agreement | |
| Comms | Communications | |
| COMMS (W/K) | Communications (Watch Keeper) | |
| COMMZ | Communications Zone | |
| Comp | Compiler | |
| COMPLAN | Communications Plan | |
| COMSAT | Communications Satellite | |
| Con | Control | |
| Con Sc | Conical Scan | |
| Cond | Condensation | |
| Conf | Confidence | |
| Config | Configuration | |
| Cons | Console | |
| Cont | Controller | |
| Conv | Conventional/Conversion | |
| Coord | Co-ordination/Co-ordinator | |
| COP | Computer Optimisation Package | |
| COp | Controlling Operator/Control Officers Panel | |
| COR | Consolidated Operational Requirement | |
| CORE | Controlled Requirments Expression | |
| Corr | Correlative | |
| Corrn | Correlation | |
| COT | Captain of Turret | |
| COTP | Captain of Turrets Panel | |
| COTS | Commercial Off The Shelf (and fit for your application) | |
| COZI | Communications Zone Indicator | |
| CP | Circular Pitch/Computer/Compare | |
| CPA | Colour Point of Alternation | |
| CPA | Closest Point of Approach | |
| CPC | Computer Process Control | |
| CPC | Computer Program Component | |
| CPC | SW | Computer Program Component |
| CPDA | Currently Predicted Data Area | |
| CPDD | Command-Post Digital Display | |
| CPM | Critical Path Method | |
| CPO (OPS) (EW) | Chief Petty Officer (Operations) (Electronic War Fare) | |
| CPO (OPS) (M) | Chief Petty Officer (Operations) (Missile) | |
| CPO (OPS) (R) | Chief Petty Officer (Operations) (Radar) | |
| CPO (OPS) (S) | Chief Petty Officer (Operations) (Sonar) | |
| CPP | Current Predicted Position | |
| cps | Counts per Second | |
| CPS | Cathode Potential Stabilisation/Central Processing System | |
| CPU | SW | Central Processing Unit |
| CQMSEC | Communications Security | |
| CR | Close Range | |
| CRA | Covert Radio Altimeter | |
| CRAM | Card Random - Access Memory | |
| CRC | Control and Reporting Centre | |
| CRC | SW | Cyclic Redundancy Check |
| CRISP | Continuous Radar Intelligence Surface Plot | |
| CRMR | Continuous-Reading Meter Relay | |
| CRS | Command Retrieval System | |
| CRS (W) | Chief Radio Supervisor (Warfare) | |
| CRT | Cathode Ray Tube | |
| CRU | Compass Retransmission Unit | |
| CS | Command System | |
| CSA | SW | Configuration Status Accounting |
| CSC | SW | Computer Software Component |
| CSH | Combat System Highway | |
| CSMA/CD | Carrier Sense, Multiple Access with Collision Detect | |
| CSMA/CD | Carrier Sense Multiple Access/Collision Detection | |
| CSMG | Course and Speed Made Good | |
| CSP | Chip Scale Packaging | |
| CSP | Computer State Panel | |
| CSS | Command Shelter Station | |
| CSU | SW | Computer Software Unit |
| CT | Control Transformer | |
| CTE | Commander of Task Element | |
| CTF | Commander of Task Force | |
| CTG | Commander of Task Group | |
| CTN | CACS Track Number | |
| CTOF | Corrected Time of Flight | |
| CTP | Central Transfer Point | |
| Ctr | Centre | |
| CTS | Clear To Send | |
| CTS | Course to Steer | |
| CTU | Commander of Task Unit | |
| CTW | Check Test Word | |
| CU | Close Up/Crosstalk Unit/Control Unit | |
| CV | Continuously Variable/Channel Vocoder | |
| CVA | Aircraft Carrier (Attack) | |
| CVF | Future Aircraft Carrier | |
| CVN | Aircraft Carrier (Nuclear Powered) | |
| CVS(H) | Anti-Submarine Warfare Carrier | |
| cw | Clockwise | |
| CW | Continuous Wave | |
| CWP | Control Wind Pointer | |
| cx | Control Transmitter | |
| CY | Communications Yeoman | |
| CZ | Convergence Zone | |
| D | Degraded | |
| d b | Decibel | |
| D Int | Datum Interval | |
| d m | Data Mile | |
| D/B | Database | |
| D/F | Direction Finding | |
| DA | Delayed Action (Fuse Type) | |
| DA | Design Author | |
| DAC | Digital to Analogue Converter | |
| DAC | Direct Access Console System/Data Acquisition and Control System/Digital Arithmetic Centre | |
| DACT | Direct Air Support Team | |
| DAGC | Delayed Automatic Gain Control | |
| DAISY | Digital Action Information System | |
| DAM | Display Autonomous Mode | |
| DAME | Data Acquisition and Monitoring Equipment | |
| DAR | Defence Acquisition Regulations | |
| DARPA | Defence Advanced Research Project Agency | |
| DAS | Data Acquisition System/Digital Attenuator System | |
| DASC | Directive Air Support Centre | |
| DASH | Drone Anti-Submarine Helicopter | |
| DAT | Digital Audio Tape | |
| DATUM | ASWE Ring Main Highway Code Name | |
| DAV | Data Above Voice | |
| DAVC | Delayed Automatic Volume Control | |
| DBB | Control Computer for GWS 25 System | |
| DBD | Doube-Base Diode | |
| DBMS | Data Base Management System | |
| DC | Direct Current/Data Channel | |
| DC | Direct Current | |
| DCCIS | Director of Command Control and Information System | |
| DCD | Data Carrier Detect | |
| DCI | SW | Diagnostic Check Interval |
| DCN | Data Control Unit/Defence Communications Network | |
| DCN | Document Change Notice | |
| DCOS | Deputy Chief of Staff | |
| DCR | Data Conversion Receiver | |
| DCS | SW | Distributed Control System |
| DCTL | Direct-Coupled Transistor Logic | |
| DCU | Display Control Unit/Decade Counting Unit/Data Control Unit | |
| DDA | Digital Differential Analyser | |
| DDAS | Digital Data Acquisition System | |
| DDC | Data Distribution Centre/Digital Data Converter | |
| DDCE | Digital Data Conversion Equipment | |
| DDG | Digital Display Generator/Guided Missile Destroyer | |
| DDL | Data Definition Language | |
| DDT | Digital Data Transmitter | |
| Dec | Decoder/Decimal | |
| DECM | Deceptive Electronic Countermeasures | |
| Decr | Decrement | |
| DED | Docking & Essential Defects | |
| DEFSPECS | Defence Specifications | |
| DEFSTAN | Defence Standard | |
| Del | Delete | |
| DEMOD | Demodulator | |
| DEMUX | Demultipexer | |
| Dep | Departure | |
| DEPCO | Defence Electronic Parts Committee | |
| DERA | Defence Evaluation and Research Agency | |
| DESC | Defense Electronic Supply Centre (now DSCC) | |
| Desig | Designated/Designation | |
| Det | Detection | |
| DETAB | Decision Tables | |
| DEU | Data Exchange Unit | |
| DEW | Distant Early Warning | |
| DF | Direction Finding | |
| DFA(1) | CACS Data Handling System | |
| DFD | SW | Data Flow Diagram |
| DGNMT | Director General Naval Manning and Training | |
| DGS | Director General Ships | |
| DH | Directly-Heated | |
| DHCP | Dynamic Host Configuration Protocol | |
| DHE | Data-Handling Equipment | |
| DICE | Distributed Communications Exchange | |
| DID | Data Item Description | |
| DIL | Dual In-Line | |
| DIMPS | Distributed Internal Message Processing System | |
| DINA | Digital Network Analyser/Direct Noise Amplifier | |
| DIP | Dual Inline Package | |
| Dir Aim | Direct Aim | |
| Dirn | Direction | |
| Discrim | Discrimination | |
| Disp | Display | |
| Disp/OL | Display Overload | |
| DISSAM | Satellite Advisory Message | |
| Dist | Distance/Distri bution | |
| Distr | Distraction | |
| DIV | Data In Voice | |
| DL | Delay Link/Data Link | |
| DLPP | Data Link Pre-Processor | |
| DLRP | Data Link Reference Point | |
| DLT | Data Link Terminal | |
| DLT 02 | Data Link Terminal Equipment Type 02 | |
| DMA | Direct Memory Access/Direct Memory Address | |
| DME | Distance-Measuring Equipment | |
| DMEA | Defense Microelectronics Activity | |
| DMS | Diminishing Manufacturing Sources | |
| DMSMS | Diminishing Manufacturing Sources and Materiel Shortages | |
| DNCS | Data Net Control Station | |
| DNS | Domain Name Server | |
| DOCU | Data Communications Control Unit | |
| DOD | Department of Defence (U.S.) | |
| Dog Boxes | Weapon Danger Circles | |
| DOS | Disk Operating System | |
| Dp | Depth | |
| DP | Data Processing | |
| DPA | Defence Procurement Agency | |
| DPC | Defence Policy Committee | |
| DPCTG | Database Program Coversion Task Group | |
| DPI | Dots Per Inch | |
| DPMG | Defence Procurement Management Guide | |
| DPR | Dual Port Ram | |
| DPR | Display Parameter Readout | |
| DR | Dead Reckoning | |
| DRAP | Data Reduction and Presentation | |
| DS | Data Sychronisation | |
| DSA | Data Selection Area | |
| DSCC | Defense Supply Center, Columbus | |
| DSCL | Data Specification and Conversion Language | |
| DSCS | Defence Satellite Communications System | |
| DSE | Data Switching Exchange | |
| DSP | Digital Signal Processor/Processing | |
| DSS | Direct Sub-system | |
| DSTAN | UK Defence Standardization, MoD | |
| DT | Data Transmission | |
| DTDMA | Distributed Time Division Multiple Access | |
| DTE | SW | Data Terminal Equipment |
| DTG | Data Time GroupPistance to Go (Helicopter Attack) | |
| DTI | Department of Trade and Industry | |
| DTP | Desk Top Publisher | |
| DTS | Data Terminal Set | |
| Durn | Duration | |
| DUSTBIN | A Nuclear Depth Bomb or Depth Charge | |
| DVD | Digital Versatile Disc | |
| DVM | Digital Volt Meter | |
| DWI | Differential Wave Impedance | |
| DWP | Data Word Pointer | |
| DX | Distant Radio Communication | |
| Top | ||