| 2ic | second in command |
| 556 | 5.56 millimetre round |
| ANA | Afghan National Army |
| ANP | Afghan National Police |
| CLU | command launch unit |
| CO | commanding officer, commander of a large military unit (see also OC) |
| DC | district centre |
| dick, dicker | observe, observer |
| FIBUA | fighting in a built-up area (also known as FISH) |
| FISH | fighting in somebody's house (see FIBUA) |
| FLET | forward line of enemy troops |
| FOB | forward operating base |
| FOO | forward observing officer |
| FSG | fire support group |
| GMG | grenade machine gun |
| GMLRS | guided multiple launch rocket system |
| GPMG | general purpose machine gun |
| HE | high explosive |
| Hesco | large collapsible wire mesh and heavy-duty fabric container which, filled with earth or sand, is used to construct protective barriers |
| IDF | indirect fire, ordnance not fired directly at a target, for example mortar rounds |
| IED | improvised explosive device |
| ISAF | International Security Assistance Force, the NATO-led United Nations security and development mission in Afghanistan |
| Jackal | British all-terrain four-wheel-drive military vehicle introduced to replace the WMIK Land Rover (see WMIK) |
| LZ | landing zone |
| Mastiff | British heavily armoured six-wheel-drive patrol vehicle derived from the American Cougar family of vehicles |
| MERT | medical emergency response team |
| Minimi | Belgian-manufactured light machine gun used by the British Army |
| NAAFI | Navy, Army and Air Force Institutes, the organization that runs recreational facilities and shops for the British armed forces |
| NDS | Afghan special police |
| OC | officer commanding, commander of a small military unit (less than battalion size) (see also CO) |
| OMLT | operational mentor and liaison team |
| OP | observation post |
| Pinzgauer | all-terrain British military truck |
| PKM | Russian-made general purpose machine gun used by the Taliban |
| REMF | rear-echelon motherfucker |
| RPG | rocket-propelled grenade |
| RV | rendezvous |
| SA80 A2 | standard rifle of the British Army |
| sit rep | situation report |
| Viking | amphibious armoured all-terrain vehicle consisting of two tracked units linked by a steering mechanism |
| WMIK | Weapons Mount Installation Kit, a stripped-down Land Rover fitted with roll bars and weapons mounts |