| Abbreviation | Definition |
|---|---|
| nn | Not Now |
| NNBTA | Not Needed, But Thanks Anyway |
| NNBU | And Now aBout You |
| NNC | No Name Clan |
| NNITO | Not Necessarily In That Order |
| NNJ | New No Joy |
| NNN | No Nut November |
| NNTA | No Need To Acknowledge |
| NNTA | No Need To Answer |
| NNTE | No Need To Explain |
| NNTK | Nobody Needs To Know |
| NNTO | No Need To Open |
| NNTO | No Need To Overreact |
| NNTR | No Need To Reply |
| NNTR | Nothing New To Report |
| NNY | Nanny |
| NO | New Opportunity |
| NO | Number One |
| NOC | No One Cares |
| NOC | No One Complained |