| Acronym | Meaning |
 | SSO | Submarine Oiler (retired US Navy Hull Classification) |
| IVF | In Vitro Fertilisation |
| CTBT | Comprehensive [Nuclear] Test Ban Treaty |
| UMI | U.S. Minor Outlying Islands (ISO 3166 Trigram) |
| EXFOR | Experimental Force (military) |
| CMO | Civil-Military Operations |
| GW | Games Workshop - Germ Warfare -Gigawatt -Guided Weapon -Guinea-Bissau (ISO 3166 Digram) |
| TJD | Truncated Julian Day |
| MF | Millifarad |
| DX | Dexterity (role-playing Games) -DeXtrorphan - Distant (radio) -D-Generation X (professional Wrestling) |
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