| Acronym | Meaning |
| NN | Norwegian Nynorsk Language (ISO 639-1 Code) |
| RCCO | Royal Canadian College Of Organists |
| FISH | Fluorescence In-Situ Hybridisation |
| CCH | Computer-Controlled Hostile |
| AU | Gold |
| JAL | Japan Airlines |
| POS | Point Of Sale Terminal /Retail Industry Transaction Computers. |
| DMS | U.S. Defense Message System |
| RE | Rhenium |
| YTS | Youth Training Scheme |