# once vs ontem

> Portuguese confusable word pair

## The two words

### once
*num · IPA /ˈɔnθe/ · frequency rank #12,301*
onze

### ontem
*adverb · IPA /ˈõ.tɐ̃j̃/ · frequency rank #525*
no dia anterior ao de hoje

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