| Acronym | Meaning |
| PDN | Pull-Down Network |
| UWT | Under Water Telephone |
| FTSE | Financial Times Stock Exchange (footsie) |
| PLAF | Product Line Architecture Framework |
| DBE | Dame Commander Of The Order Of The British Empire |
| STR | Short Tandem Repeat (DNA Analysis) |
| SADD | Students Against Drunk Driving (national School Related Group) |
| YID | Yiddish Language (ISO 639-2 Code) |
| SUI | Sonic User Interface |
| SYR | Syria (ISO 3166 Trigram) |