| Acronym | Definition |
|---|
| NX | Nexus (Everquest gaming) |
| NX | No Execute (Microsoft) |
| NX | New X (X terminal server system by NoMachine) |
| NX | Air Macau (airline code) |
| NX | Northern Exposure (TV show) |
| NX | Entry/Exit (railroads) |
| NX | No Excuses (Internet slang) |
| NX | Navy Exchange |
| NX | eNtrance - eXit (railroad engineering) |
| NX | Non-Expendable |
| NX | Pump It Up: New Xenesis (video game) |
| NX | Noranda, Quebec (Ontario Northland railway code) |
| NX | Nitrous Express, Inc. (Wichita Falls, TX) |
| NX | Normal to X-Axis |
| NX | Naval Experiment (Star Trek; compare with NCC) |
| NX | NX Clusive (Spanish: México Northamerica; TV show) |