| Acronym | Meaning |
| RJD | Reduced Julian Day |
| NCA | National Command Authority |
| UID | User ID |
| CAFE | Corporate Average Fuel Economy Standard |
| 3I | Investors In Industry (venture Capitalists) |
| MU | Mauritius (ISO 3166 Digram) - Oman (FIPS 10-4 Country Code; From Muscat) |
| TLAR | That Looks About Right (chat Shorthand) - Transporter-Launcher And Radar |
| IPCC | Intergovernmental Panel On Climate Change |
| AC | Adriamycin-Cyclophosphamide (chemotherapy) - Air Conditioning - Alternating Current - Ante Christum (Latin |
| VFMO | Very Fast Moving Object (astronomy) |