| Acronym | Meaning |
| PN | Petanewton - Pitcairn Islands (ISO 3166 Digram) |
| SME | Northern Sami Language (ISO 639-2 Code) |
| ROTC | Reserve Officer Training Corps (Rawt-Cee) |
| NECTEC | National Electronics And Computer Technology Center (Thailand) |
| WLF | Wallis And Futuna Islands (ISO 3166 Trigram) |
| GCD | See Entry |
| PDQ | Pre-Defined Queries (Siebel Packages) - Pretty Damn Quick |
| IKEA | Ingvar Kamprad (the Company's Founder) |
| PDN | Pull-Down Network |
| HVAP | High Velocity Armour Piercing (ammunition) |