| Acronym | Meaning |
| MAO | Mol?t? Astronomijos Observatorija (Moletai Astronomical Observatory) - MonoAmine Oxidase |
| RTP | Real-time Transport Protocol |
| UG | Uganda (ISO 3166 And FIPS 10-4 Country Code Digram) |
| INLA | Irish National Liberation Army |
| YYH | YuYu Hakusho |
| CX | Christmas Island (ISO 3166 Digram) - One Hundred And Ten (in Roman Numerals) |
| SOCCSKSARGEN | South Cotabato |
| PIRA | Provisional Irish Republican Army |
| ORD | Office Of Research And Development - Operational Requirements Document |
| HMO | Hiri Motu Language (ISO 639-2 Code) |