# on vs once

> Spanish confusable word pair

## The two words

### on
*num · IPA [ˈon] · frequency rank #1,908*
Diez.

### once
*num · IPA [ˈõnse] · frequency rank #3,347*
Diez y uno.

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