| Acronym | Meaning |
| RO | Range Only - Red Orchestra -Romania (ISO 3166 And FIPS 10-4 Country Code Digram) |
| NIAMD | National Institute Of Arthritis And Musculoskeletal Diseases |
| FFA | Forum Fisheries Agency -Free-Fire Area - Fusiform Face Area - Football Federation Australia - Future Farmers Of America (today The National FFA Organization) |
| HPA | UK Health Protection Agency |
| GCF | Greatest Common Factor |
| CND | Campaign For Nuclear Disarmament - Computer Network Defence |
| AFL | American Federation Of Labor - American Football League - Arena Football League - Australian Football League |
| FOOP | Friends Of Organ Pipes (Volunteer Group) |
| TSCA | Toxic Substances Control Act (tosca) |
| PPQ | Pulses Per Quarter (used In Music Programming |