# not vs NPT

> English confusable word pair

## The two words

### not
*adverb · IPA /nɒt/ · frequency rank #23*
Negates the meaning of the modified verb.

### NPT
*noun · frequency rank #48,930*
Initialism of national pipe thread.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/not-vs-npt