| Acronym | Meaning |
| YTM | Yield To Maturity |
| TTO | Trinidad And Tobago (ISO 3166 Trigram) |
| CRIPL | Consolidated Remain-In-Place List |
| CHU | Old Church Slavonic Language (ISO 639-2 Code) |
| LOC | Level Of Operational Capability - Limited Operational Capability - Lines Of Code - Lines Of Communication - See Entry |
| RDO | Rapid |
| FJ | Fiji (ISO 3166 Digram; FIPS 10-4 Country Code) |
| NORTHAG | Northern Army Group |
| ICRS | International Celestial Reference System |
| PUN | Pull-Up Network |