# serum vs strut

> English confusable word pair

## The two words

### serum
*noun · IPA /ˈsɪəɹəm/ · frequency rank #10,609*
Ellipsis of blood serum.

### strut
*verb · IPA /stɹʌt/ · frequency rank #23,692*
Of a peacock or other fowl: to stand or walk stiffly, with the tail erect and spread out.

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