| Acronym | Meaning |
| AX | land Islands (ISO 3166 Digram) |
| GWAS | Grand Western Archery Society |
| SNG | Satellite News Gathering (television) |
| OCR | Optical Character Recognition |
| HMV | His Master's Voice |
| NAN | Not A Number (computing) |
| HIMAD | High To Medium Altitude Air Defence (see Also H/MAD) |
| GZK | Greisen-Zatsepin-Kuzmin Cut-off (cosmic Ray Energies) |
| PR | Public Relations -Puerto Rico (postal Symbol; ISO 3166 Digram) |
| METAR | [Meteorological] Aviation Routine Weather Report |