# understood vs undertook

> English confusable word pair

## The two words

### understood
*adjective · IPA /ʌndəˈstʊd/ · frequency rank #2,603*
Having been comprehended.

### undertook
*verb · IPA /ʌndəˈtʊk/ · frequency rank #16,376*
simple past of undertake

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