| Acronym | Meaning |
| ACCD | American Coalition Of Citizens With Disabilities |
| ATG | Antigua And Barbuda (ISO 3166 Trigram) |
| IFO | Identified Flying Object (see Also UFO) |
| RSVP | Répondez S'il Vous Plaît. A French Phrase That Translates To "please Respond" And Word For Word Translation Is "respond If You Please." It Is Standard Practice To Reply To An RSVP Request Whether Confirming Attendance Or Declining. |
| PHP | Philippine Peso (ISO 4217 Currency Code) -PHP: Hypertext Preprocessor (originally Personal Home Page (Tools)) |
| ACM | Many |
| NWFZ | Nuclear-Weapon-Free Zone |
| DDA | Digital Differential Analyzer - Deputy District Attorney |
| SMS | Many |
| FOTA | Fellow Of The Orthodontic Technicians Association |