| Acronym | Meaning |
 | AZE | Azerbaijan (ISO 3166 Trigram) |
| TT | Tatar Language (ISO 639-1 Code) |
| RF | Radio Frequency - Receptive Field (neurophysiology) |
| MET | Meteorological -Middle European Time |
| PRBO | Point Reyes Bird Observatory |
| NHL | National Hockey League |
| NIMA | National Imagery And Mapping Agency (became NGA) |
| DEU | German Language (ISO 639-2 Code) |
| SRC | Scheduled Removal Component |
| VOIP | Voice Over Internet Protocol |
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