| Acronym | Meaning |
| TAA | Transparency Anti-Aliasing |
| TSO | The Stationery Office (was HMSO Until 1996) - (U.S.) TRICARE Support Office |
| NF | Norfolk Island (ISO 3166 Digram) |
| TGK | Tajik Language (ISO 639-2 Code) |
| FYI | For Your Information |
| NARA | (U.S.) National Archives And Records Administration |
| KSM | Korean Service Medal |
| IPN | Instytut Pamieci Narodowej (Polish |
| SSG | Guided Missile Submarine (retired US Navy Hull Classification) |
| RCRA | Resource Conservation And Recovery Act (reck-ra Or Rick-ra) |