| Acronym | Meaning |
 | UT | Universal Time |
| COTS | Commercial Off The Shelf |
| AIRFA | American Indian Religious Freedom Act |
| IFO | Identified Flying Object (see Also UFO) |
| ECL | Emitter Coupled Logic (electronics) |
| GU | Gujarati Language (ISO 639-1 Code) |
| USDRE | (U.S.) Under-Secretary Of Defense For Research And Engineering (1978?1986) |
| P2P | Peer-to-peer (networking) |
| CCRP | Command And Control Research Program |
| TWN | Republic Of China (Taiwan) (ISO 3166 Trigram) |
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