| Acronym | Meaning |
| QC | Quality Control -Qu?bec (postal Symbol) -Queen's Counsel |
| OC | Occitan Language (ISO 639-1 Code) |
| OSA | Order Of St. Augustine |
| MDP | Markov Decision Process |
| NFER | National Foundation For Educational Research |
| LABVIEW | Laboratory Virtual Instrumentation Engineering Workbench |
| KSC | Kennedy Space Center |
| NAF | NATO Architecture Framework -Naval Air Facility |
| D&D | Dungeons And Dragons - Diversion And Distress (Air Traffic Control) |
| HLVW | Heavy Logistics Vehicle |