# NOI vs NPT

> English confusable word pair

## The two words

### NOI
*noun · frequency rank #36,264*
Initialism of notice of intent.

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

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