| Acronym | Meaning |
| RSR | Required Supply Rate |
| KOR | Republic Of Korea (ISO 3166 Trigram) |
| FDC | Federal Detention Center (U.S.) - Fire Direction Centre |
| ICNAF | International Commission For The Northwest Atlantic Fisheries (became NAFO In 1978) |
| DO | Dominica (FIPS 10-4 Country Code) - Dominican Republic (ISO 3166 Digram) -Doctor Of Osteopathy |
| PIB | PolyIsoButylene |
| USPS | United States Postal Service |
| HCSC | Higher Command And Staff Course |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| MGPAM | My Gym Partner's A Monkey |