| Acronym | Meaning |
| AG | Silver (Latin Argentum) |
| PLN | Polish Zloty (ISO 4217 Currency Code) |
| PERL | Usually Lower Case Practical Extraction And Report Language |
| NAAK | Mark I NAAK |
| WWJD | What Would Jesus Do? (see WWWD) |
| USFWS | United States Fish And Wildlife Service |
| TAAR | Trace Amine-Associated Receptor |
| LDV | Local Defence Volunteers (British Home Guard) |
| HURD | Hird Of Unix-Replacing Daemons (cf. Hird) |
| NICAP | National Investigations Committee On Aerial Phenomena |