| Acronym | Meaning |
| UHMW | Ultra-High Molecular Weight |
| N3F | National Fantasy Fan Federation |
| SIAM | Society For Industrial And Applied Mathematics |
| AFAIC | As Far As I'm Concerned |
| FOH | Front Of House |
| NMN | No Middle Name |
| KSC | Kennedy Space Center |
| ACCAC | Awdurdod Cymwysterau |
| TBM | Tactical Ballistic Missile - Theatre Ballistic Missile |
| ACK | Acknowledge (telecommunications; Cf. NAK) |