# NIH vs ninth

> English confusable word pair

## The two words

### NIH
*name · frequency rank #18,376*
Initialism of National Institutes of Health.

### ninth
*adjective · IPA /naɪnθ/ · frequency rank #6,387*
The ordinal form of the number nine.

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