| Acronym | Meaning |
| IWRA | International Water Resources Association |
| AFW | Auxiliary Feedwater |
| AMWG | Atmosphere Model Working Group |
| C | A Programming Language Used Extensively In Systems Software |
| DOS | Department Of State |
| IRCTR | International Research Centre For Telecommunication-transmission And RADAR |
| POP | Probability Of Precipitation |
| CASAC | Clean Air Scientific Advisory Committee |
| AID | Agency For International Development |
| AFV | Armored Fighting Vehicle |