# iso vs issa

> English confusable word pair

## The two words

### iso
*noun · IPA /ˈaɪsəʊ/ · frequency rank #9,771*
Clipping of isolation.

### issa
*contraction · IPA /ˈɪsə/ · frequency rank #21,249*
Contraction of it's + a.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/iso-vs-issa