# undo vs uno

> English confusable word pair

## The two words

### undo
*verb · IPA /ʌnˈduː/ · frequency rank #13,631*
To reverse the effects of an action.

### uno
*intj · IPA /ˈuː.noʊ/ · frequency rank #20,255*
A term said when the number of cards in player’s hand is reduced to one. If another player says this before the one whose hand contains only one card, the player who failed to say 'uno' must draw two cards.

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