| Acronym | Meaning |
| IIRC | If I Recall/Remember Correctly |
| QUANGO | (British Commonwealth) QUasi Autonomous Non-Governmental Organisation |
| RU | Ruthenium |
| AGO | Angola (ISO 3166 Trigram) |
| HO | Honduras (FIPS 10-4 Country Code) |
| E&E | Escape And Evasion (training) |
| RRSP | Registered Retirement Savings Plan (Canada; Roughly Equivalent To The IRA In The U.S.) |
| SWE | Sweden (ISO 3166 Trigram) |
| MOCAS | Mechanization Of Contract Administration Services |
| ACS | Affiliated Computer Services (NYSE ACS) - American Cancer Society - American Chemical Society - Association Of Caribbean States |