| Acronym | Meaning |
 | CAV | Cavalry (Armored Cavalry Regiment); Cavalry Fighting Vehicle |
| CBR | Chemical-Biological-Radiological (see NBC); Charger Battery Relay |
| CENTCOM | United States Central Command (AFB MacDill |
| CIB | Combat Infantryman Badge; Combined Information Bureau; Controlled Image Base |
| CIF | Central Issue Facility |
| CO | Commanding Officer (also Conscientious Objector); Certifying Officer; Change Order; Contracting Officer |
| COA | Course Of Action |
| COB | Close Of Business. The End Of The Day Or Duty Shift. MEANING: By The End Of The Duty Day. USAGE: Get That To Me By COB Today!!!; Contingency Operating Base. Example: Contingency Operating Base (COB) Speicher |
| CONUS | CONtinental United States |
| CPX | Command Post Exercise |
| CQ | Charge Of Quarters. A Company-level Position Of Responsibility For Units Who House Troops In Their Areas. Given To A Mid-level Or Junior NCO Who Is Responsible For The Company's Barracks And Area During Off-duty Hours When The Company Commander And/or F |
| CTA | Common Table Of Allowances |
| CTC | Combat Training Center |
| CWO | Chief Warrant Officer; Communications Watch Officer |
| CWST | Combat Water Survival Test |
| CWT | Combat Weather Team |
| DA | Department Of The Army; Data Adapter Aerospace Drift; Data Administrator; Direct Action; Directorate For Administration (DIA); Decision Agent; Developing Agency; Design Agent; Development Activity; Disbursing Advisory Notice; Drift Angle |
| DCM | Distinguished Conduct Medal; Data Channel Multi-plexer; Deputy Chief Of Mission; Data Communication Module |
| DCU | Data Control Unit; Document Control Unit; Desert Camouflage Uniform (not Official) |
| DD | Destroyer (Navy Ship); Defense Department (see Department Of Defense) |
| DFAC | Dining Facilities Administration Center (i.e. |
| DFAS | Defense Finance And Accounting System |
| DOD (DD) | Department Of Defense (Defense Department |
| DPICM | Dual-Purpose Improved Conventional Munitions (i.e. |
| DRU | Direct Reporting Unit |
| DX | Direct Exchange (of Damaged Equipment) |
| EFP | Explosively-Formed Projectile |
| EIB | Expert Infantryman's Badge |
| EMT | Emergency Medical Technician; Emergency Medical Treatment; Elapsed Maintenance Time |
| EOD | Explosive Ordnance Disposal |
| ETS | Expiration Of Term Of Service (scheduled Date Of Separation From Active Duty); Electronic Time Keeping System; Emergency Temporary Standard; Engineering (and) Technical Services (Request); Engineering Time Standards; Estimating Tracking System; Estimated |
| EUCOM | United States European Command (Stuttgart-Vaihingen |
| EXSUM | Executive Summary |
| FARP | Forward Arming And Refueling Point/Forward-Arming Replenishment Package |
| FEBA | Forward Edge Of Battle Area |
| FLOT | Forward Line Of Own Troops |
| FOA | Field Operating Agency |
| FOB | Forward Operating Base; Forward Operations Base |
| FORSCOM | United States Army Forces Command (Ft. McPherson |
| FOUO | For Official Use Only |
| FTX | Field Training Exercise |
| FUBAR | Fucked Up Beyond Any Repair |
| GCM | Good Conduct Medal; General Court-Martial; Guidance Section |
| GFOQ | General/Flag Officers' Quarters |
| GMC | General Military Course |
| HAHO | 'High-Altitude High-Opening Parachute Technique (type Of Parachute Jump |
| HALO | High-Altitude Low-Opening Parachute Technique (type Of Parachute Jump |
| HANO | High-Altitude No-Opening Parachute Technique (type Of Parachute Jump |
| HBCT | Heavy Gade Combat Team |
| HE | High-Explosive; Handling Equipment; Housing Expense; Heavy Equipment |
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