| Acronym | Meaning |
| ARSC | Arctic Region Supercomputing Center |
| ACUF | BGN Advisory Committee On Undersea Features |
| EF | Exafarad |
| GT | Gigatesla -Gran Turismo - Grand Touring -Guatemala (FIPS 10-4 Country Code; ISO 3166 Digram) |
| CCH | Computer-Controlled Hostile |
| ORM | Oromo Language (ISO 639-2 Code) |
| SR | Sound Reinforcement - Supply Route -Suriname (ISO 3166 Digram) -Sveriges Radio (Swedish Radio Ltd) |
| UWT | Under Water Telephone |
| BAA | British Airport Authority |
| CONOPS | Concept Of Operations (military) |