| Abbreviation | Definition |
|---|---|
| NRG | Energy |
| NRR | No Reply Required |
| NSA | No Strings Attached |
| NSA | No Such Animal |
| NSF | Not So Fast |
| NSF(!) | NOT SO FAST (!) |
| NSFB | Not Safe For Breakfast |
| NSL | No Such Luck |
| NSL | Not So Long |
| NSNF | Not Seen Not Found |
| NT | Next To |
| NTB | Not Too Bad |
| NTIM | Not That It Matters |
| NTL | Not Too Long |
| NTP | No Time Posted |
| NTS | Note To Self |
| NUF | Enough |
| NUFSED | Enough Said |
| NUZ | News |
| NVG | Not Very Good |