| Acronym | Meaning |
| PRT | Portugal (ISO 3166 Trigram) -Provincial Reconstruction Team |
| DS | Dear Son (increasingly Prevalent On Social Mailing Lists |
| OPSEC | Operations Security - Open Platform For Security |
| NS | Nanosecond |
| TVG | Tick |
| KP | Kim Possible |
| PAFC | Plymouth Argyle Football Club |
| SUI | Sonic User Interface |
| MDM | Michigan Dartmouth MIT Telescope Consortium |
| EDS | Electronic Data Systems - Electronic Differential System |