# io vs iso

> Spanish confusable word pair

## The two words

### io
*pronoun · IPA /ˈi.o/ · frequency rank #9,480*
Algo.

### iso
*noun · IPA /ìsó/ · frequency rank #12,180*
Cielo

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