| Acronym | Meaning |
| DCC | Digital Command Control (model Railroading) - Direct Client-to-Client (Internet Relay Chat) - Dismounted Close Combat |
| XL | EXtra Large -Forty (in Roman Numerals) |
| FOB | Free On Board (shipping) |
| AFRRI | (U.S.) Armed Forces Radiobiology Research Institute |
| FN | Femtonewton |
| COEIA | Combined Operational Effectiveness And Investment Appraisal (military) |
| JOTS | Joint Operations Tactical System |
| PEET | Partnerships For Enhancing Expertise In Taxonomy |
| CFC | ChloroFluoroCarbon |
| FLQ | Front De Lib?ration Du Qu?bec (French For Qu?bec Liberation Front) |