# IRB vs iris

> English confusable word pair

## The two words

### IRB
*noun · frequency rank #33,690*
Initialism of institutional review board, a committee that reviews the designs of proposed experiments to confirm whether all the methods proposed are ethical.

### iris
*noun · IPA /ˈaɪ.ɹɪs/ · frequency rank #10,228*
A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/irb-vs-iris