| Acronym | Meaning |
 | ACK | Acknowledge (telecommunications; Cf. NAK) |
| PG | Papua New Guinea (ISO 3166 Digram) -Parental Guidance (rating) |
| SUR | Suriname (ISO 3166 Trigram) |
| UU | Unitarian Universalism - University Of Utah - Unseen University |
| AGC | Adjutant General's Corps (British Army) |
| A2C2 OR A?C? | Army Airspace Command And Control |
| DOB | Date Of Birth |
| XVI | Sixteen (in Roman Numerals) |
| PWLC | PieceWise Linear And Concave/Convex (describing A Mathematical Function) |
| FBIS | Foreign Broadcast Information Service |
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