| Acronym | Meaning |
| OO | Object Oriented - Over & Out |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| CW | Continuous Wave (laser) -Cook Islands (FIPS 10-4 Territory Code) |
| ASTM | American Society For Testing And Materials |
| TG | Togo (ISO 3166 Digram) |
| QWGAOR | Quadripartite Working Group On Army Operational Research (qwig-a-o-r) |
| NFA | No-Fire Area |
| BOD | Tibetan Language (ISO 639-2 Code) |
| MARC | MAchine Readable Cataloging (often Also Defined As MAchine Readable Code) |
| PSC | Primary Somatosensory Cortex |