| Acronym | Meaning |
| MHHW | Mean Higher High Water (nautical Charts) |
| A/S | Anti-submarine |
| ONCE | Organizaci›n Nacional De Ciegos Espa?oles (Spanish |
| RB | Running Back (football) |
| FINA | F?d?ration Internationale De Natation (French |
| AH | Attohenry |
| TWN | Republic Of China (Taiwan) (ISO 3166 Trigram) |
| JSR | Java Specification Request |
| DAES | Defence Acquisition Executive Summary - (UK MoD) Directorate Of Analysis |
| PW | Picowatt |