| Abbreviation | Definition |
|---|---|
| NHC | HealthCare Chattanooga |
| NHF | Newbieized Help File |
| NHL | No Home Life |
| NHL | Not Happening Lately |
| NHOH | Never Heard Of Him |
| NI | Not In |
| NIA | Not In Archives |
| NIAGO | Now I Am Going Out |
| NIAMY | Never In A Million Years |
| NIC | Nickname |
| NIC | Not In Contract |
| NICAM | No Income, Common As Muck |
| NICE | Needs Internet Community Etiquette |
| NIFOC | Naked In Front Of Computer |
| NIFOC | Nude In Front Of Computer |
| NIGI | Now I Get It |
| NIGO | Not In Good Order |
| NIL | Never In Life |
| NIL | Not+Illustrated |
| NIL | Nothing Is Left |