# NP

> English word · Noun · frequency rank #13,570

## Definitions
1. Initialism of notary public.
2. Initialism of nurse practitioner.
3. Initialism of national park.
4. Initialism of noun phrase.
5. Initialism of nanoparticle.
6. Abbreviation of nondeterministic polynomial, the complexity class of computational problems that a nondeterministic Turing machine can solve in polynomial time.
7. Abbreviation of nosocomial pneumonia.

## Easily confused with
- **NZ** (https://plainspell.com/en/vs/np-vs-nz)
- **NT** (https://plainspell.com/en/vs/np-vs-nt)
- **nu** (https://plainspell.com/en/vs/np-vs-nu)
- **nr** (https://plainspell.com/en/vs/np-vs-nr)
- **NYC** (https://plainspell.com/en/vs/np-vs-nyc)
- **nut** (https://plainspell.com/en/vs/np-vs-nut)
- **NSA** (https://plainspell.com/en/vs/np-vs-nsa)
- **NSW** (https://plainspell.com/en/vs/np-vs-nsw)
- **nun** (https://plainspell.com/en/vs/np-vs-nun)
- **NPR** (https://plainspell.com/en/vs/np-vs-npr)
- **NRA** (https://plainspell.com/en/vs/np-vs-nra)
- **nye** (https://plainspell.com/en/vs/np-vs-nye)
- **NYT** (https://plainspell.com/en/vs/np-vs-nyt)
- **NYU** (https://plainspell.com/en/vs/np-vs-nyu)
- **NPC** (https://plainspell.com/en/vs/np-vs-npc)
- **NRC** (https://plainspell.com/en/vs/np-vs-nrc)
- **NSF** (https://plainspell.com/en/vs/np-vs-nsf)
- **NSC** (https://plainspell.com/en/vs/np-vs-nsc)
- **nth** (https://plainspell.com/en/vs/np-vs-nth)
- **nuh** (https://plainspell.com/en/vs/np-vs-nuh)

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/np