# onza vs opa

> Spanish confusable word pair

## The two words

### onza
*noun · IPA [ˈõnsa] · frequency rank #36,194*
Unidad de masa, equivalente a 28,7 g. o a 1/16 de libra.

### opa
*adjective · IPA [ˈopa] · frequency rank #37,239*
Tonto.

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