| Acronym | Meaning |
| EDS | Electronic Data Systems - Electronic Differential System |
| JL | Japan Airlines (IATA Airline Designator) |
| NR | Southern Ndebele Language (ISO 639-1 Code) |
| NIMBY | Not In My Back Yard |
| ARSC | Arctic Region Supercomputing Center |
| N | Newton - Nitrogen - North |
| K9 | Canine Police Unit |
| MSEC | Message Security Encryption Code (emm-sec) |
| BTP | British Transport Police |
| MRT | Mauritania (ISO 3166 Trigram) |