| Acronym | Meaning |
 | RTP | Real-time Transport Protocol |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| PANS | Pretty Advanced/Awesome Network Services (cf. POTS) |
| CS | Combat Support - Computer Scientist -Costa Rica (FIPS 10-4 Country Code) - Serbia And Montenegro (ISO 3166 Digram) |
| OTC | Over-The-Counter (drugs) |
| VI | 6 (in Roman Numerals) - British Virgin Islands (FIPS 10-4 Territory Code) - U.S. Virgin Islands (postal Symbol; ISO 3166 Digram) -vide Infra (Latin |
| MMCM | Machinist's Mate |
| PICS | Private Investment Capital Subscription |
| FSF | Free Software Foundation |
| CITS | Combat Identification Training System |
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