| Acronym | Meaning |
| IMSA | Illinois Mathematics And Science Academy - International Mind Sports Association - International Motor Sports Association |
| RRN | Recurrence Rate Number |
| KBE | Knight Commander Of The Order Of The British Empire |
| BDTA | British Dental Trade Association |
| ELINT | Electronic Intelligence |
| TCHD | Truck Cargo Heavy Duty |
| BCFG | Patchy Fog (METAR Code) |
| GTD | Getting Things Done |
| ILS | Israeli Shekel (ISO 4217 Currency Code) |
| APB | All Points Bulletin (police Jargon) |