| NTFS | NTFS |
| nth | ennesimo |
| NTSC | National television system committee |
| NTT DoCoMo | Ntt DoCoMo |
| Nu | Ni |
| Nu genre | Nu genre |
| NU NRG | Nu Nrg |
| Nuada | Nuada |
| Nuada Airgetlám | Nuada |
| nuance | sfumatura |
| nuancing | finezza |
| nub | bottone |
| Nubia | Nubia |
| Nubian goat | Capra anglo-nubiana |
| Nubian Ibex | Capra ibex |
| nubile | da marito |
| Nubra Valley | Nubra |
| NUbuntu | NUbuntu |
| Nuccio Bertone | Nuccio Bertone |
| Nucet | Nucet |
| Nuchal ligament | Legamento nucale |
| nuclear | nucleare |
| nuclear accident | incidente nucleare |
| Nuclear Blast | Nuclear Blast |
| nuclear bomb | bomba atomica |
| nuclear debate | dibattito sul nucleare |
| nuclear disarmament | disarmo atomico |
| nuclear disintegration | disintegrazione nucleare |
| nuclear energy | energia nucleare |
| nuclear energy legislation | legislazione sull'energia nucleare |
| nuclear energy use | uso dell'energia nucleare |
| Nuclear envelope | Membrana nucleare |
| nuclear explosion | esplosione nucleare |
| nuclear facility | struttura nucleare |
| nuclear fission | fissione nucleare |
| nuclear fuel | combustibile nucleare |
| nuclear fuel element | barre di combustibile nucleare |
| nuclear fusion | fusione nucleare |
| Nuclear fussion | Sintesi chimica |
| nuclear hazard | pericolo nucleare |
| Nuclear isomer | Isomeria nucleare |
| Nuclear marine propulsion | Rompighiaccio a propulsione nucleare |
| Nuclear matrix | Matrice nucleare |
| Nuclear Non-Proliferation Treaty | Trattato di non proliferazione nucleare |
| nuclear physics | fisica nucleare |
| Nuclear power | Energia nucleare |
| nuclear power plant | centrale nucleare |
| nuclear power station | centrale nucleare |
| Nuclear powered icebreaker | Rompighiaccio a propulsione nucleare |
| Nuclear program of Iran | Programma nucleare iraniano |
| Nuclear programme of Iran | Programma nucleare iraniano |
| Nuclear radiation | Radiazione nucleare |
| nuclear reaction | reazione nucleare |
| Nuclear reactions | Reazioni nucleari |
| nuclear reactor | reattore nucleare |
| Nuclear reactor technology | Reattore nucleare a fissione |
| nuclear research centre | centro di ricerca nucleare |
| nuclear risk | rischio nucleare |
| nuclear safety | sicurezza nucleare |
| Nuclear summer | Inverno nucleare |
| nuclear test | test nucleare |
| Nuclear transmutation | Tramutamento |
| nuclear war | guerra nucleare |
| nuclear warhead | testata nucleare |
