| Acronym | Meaning |
| MBCS | Multi-Byte Character Set |
| LIFO | Last In |
| DEFCON | Defence Readiness Condition |
| ZM | Zettametre |
| RAP | Radio Access Point - Radiological Assistance Program (U.S. Department Of Energy) - Rear Area Protection - Recognised [Operating/Operational] Air Picture - Recurring Advance Payment - Relational Associative Processor - Reliable Acoustic Path - Rocket-Assis |
| SGML | Standard Generalized Markup Language |
| WIMP | Weakly Interacting Massive Particle - Windows |
| NA | Nanoampere |
| BATBYGOBSTOPL | Buying A Ticket Before You Get On Board Saves Time Or Problems Later |
| SALT | Southern African Large Telescope - Strategic Arms Limitation Talks |