| Acronym | Meaning |
| TCL | Tool Command Language |
| KL | Kalaallisut Language (ISO 639-1 Code) |
| IELTS | International English Language Testing System |
| RSS | Really Simple Syndication |
| BRA | Brazil (ISO 3166 Trigram) |
| PWL | PieceWise Linear (describing A Mathematical Function) |
| LRD | Liberian Dollar (ISO 4217 Currency Code) |
| JTMD | Joint Theatre Missile Defence |
| NCES | U.S. National Center For Education Statistics - Net-Centric Enterprise Services |
| OTO | Ordo Templi Orientis (Latin |