| Acronym | Meaning |
| LTC | Long Term Costing |
| WHI | Women's Health Initiative |
| PGP | Pretty Good Privacy |
| SNES | Super Nintendo Entertainment System |
| SAML | Security Assertion Markup Language (sam-ell) |
| BDOS | Basic Disk Operating System; Part Of CP/M |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| NSA | U.S. National Security Agency - Naval Support Activity - No Strings Attached |
| ELM | Edge-Localised Mode (plasma Physics) |
| PCN | Pitcairn Islands (ISO 3166 Trigram) |