| Acronym | Meaning |
| PBT | PolyButylene Terephthalate |
| PT | Portuguese Language (ISO 639-1 Code) |
| QK | Air Canada Jazz (IATA Airline Designator) |
| CFC | ChloroFluoroCarbon |
| YB | Youcef Benzouada (Southern Algerian Name) |
| ACTU | Australian Council Of Trade Unions |
| CAT | Catalan Language (ISO 639-2 Code) |
| SR | Serbian Language (ISO 639-1 Code) |
| MW | Maintenance Of Way (also MOW) -Malawi (ISO 3166 Digram) -Medium Wave (radio) -Megawatt |
| DDR | Dance Dance Revolution - Deutsche Demokratische Republik (German |