# strengthen vs strengthened

> English confusable word pair

## The two words

### strengthen
*verb · IPA /ˈstɹɛŋ(k)θən/ · frequency rank #6,743*
To make strong or stronger; to add strength to; to increase the strength of; to fortify.

### strengthened
*verb · IPA /ˈstɹɛŋθənd/ · frequency rank #11,475*
simple past and past participle of strengthen

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