| Acronym | Meaning |
 | CYM | Welsh Language (ISO 639-2 Code) |
| SSBN | Nuclear-Powered Ballistic Missile Submarine (US Navy Hull Classification) |
| ALD | Accounting Line Designator (nuclear Weapon Targeting) |
| MGB | Medium Girder Bridge |
| NHS | National Health Service (UK) |
| UPI | United Press International |
| YMD | People's Democratic Republic Of Yemen (ISO 3166 Trigram |
| G20 | Group Of 20 (G8 + Argentina |
| MOH | Medal Of Honor - Music On Hold |
| CFZ | Critical Friendly Zone |
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