# backs vs basis

> English confusable word pair

## The two words

### backs
*noun · IPA /bæks/ · frequency rank #6,025*
plural of back

### basis
*noun · IPA /ˈbeɪ.sɪs/ · frequency rank #1,626*
A physical base or foundation.

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