# bolster vs booster

> English confusable word pair

## The two words

### bolster
*noun · IPA /ˈbɒlstə/ · frequency rank #19,274*
A large cushion or pillow, usually cylindrical in shape.

### booster
*noun · IPA /ˈbustɚ/ · frequency rank #13,672*
Something that boosts.

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