| Acronym | Meaning |
| NC3A OR NC?A | NATO Consultation |
| SIMAC | Semantic Interaction With Music Audio Contents |
| HST | See Entry |
| DPRE | Displaced Person Or Refugee (plural Displaced Persons And Refugees) |
| AESR | Aeronautical Equipment Service Record |
| ABM | Anti-Ballistic Missile - Asynchronous Balanced Mode - Automated Banking Machine |
| NAPDD | Non-Acquisition Program Definition Document (nap-dee-dee) |
| FOS | Florida Ornithological Society - Full Operational Status |
| INFORMS | (U.S.) Institute For Operations Research And The Management Sciences |
| SST | SuperSonic Transport -Training Submarine (US Navy Hull Classification) - Saturated Suction Temperature (refrigeration Cycles) |