| Acronym | Meaning |
| AB | Able Seaman (rank) |
| M | Mega - One Thousand (in Roman Numerals) |
| MRE | Meal Ready To Eat (U.S. Military Rations) |
| NEA | Near-Earth Asteroid - Nuclear Energy Agency (OECD) |
| CBC | Canadian Broadcasting Corporation - Christmas Bird Count - Cipher-Block Chaining - Cornering Brake Control |
| C4 OR C? | Command |
| 4GL | Fourth-generation Programming Language |
| GTG | Got To Go (Internet Chat) |
| J2SE | Java 2 Platform |
| MARCENT | United States Marine Forces Central Command |