| Acronym | Meaning |
| DCI | Detection |
| BALCO | Bay Area Laboratory Co-operative |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| PAMELA | Pedestrian Accessibility And Movement Environment Laboratory |
| G9 | Assistant Chief-of-Staff |
| AARP | (i/s) American Association Of Retired Persons (now Officially Known Only By The Initials) |
| CCOC | Canadian Children's Opera Chorus |
| AIPAC | American Israel Public Affairs Committee |
| HORECA | Hotel |
| NCCAM | U.S. National Center For Complementary And Alternative Medicine |