| Acronym | Meaning |
 | NUL | Null Character (ASCII Code Of Control Character) - National Urban League |
| NASCAR | National Association For Stock Car Auto Racing |
| AISB | (British Society For The Study Of) Artificial Intelligence And The Simulation Of Behaviour |
| NQ | Dronning Maud Land (ISO 3166 Digram; Obsolete 1983) |
| NV | Nevada (postal Symbol) |
| XC | Ninety (in Roman Numerals) |
| ISEN | Internet Search Environment Number |
| AFC | American Football Conference - Asian Football Confederation |
| KV | Kilovolt |
| MOW | Maintenance Of Way (also MW) |
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