| Acronym | Meaning |
| TD | Toon Disney |
| REM | Rapid Eye Movement (sleep Phase) - Rosicrucian Egyptian Museum |
| MDG | Madagascar (ISO 3166 Trigram) -UN Millennium Development Goal |
| CX | Christmas Island (ISO 3166 Digram) - One Hundred And Ten (in Roman Numerals) |
| SEDRIS | Synthetic Environment Data Representation And Interchange Specification |
| OAC | On Approved Credit |
| CV | Chuvash Language (ISO 639-1 Code) |
| OPLAN | Operation Plan (also OpPlan) |
| LDAP | Lightweight Directory Access Protocol (pronounced Ell-dap) |
| WA | Walloon Language (ISO 639-1 Code) |