# dup vs duty

> English confusable word pair

## The two words

### dup
*verb · IPA /dʌp/ · frequency rank #28,177*
to open (a door, gate etc.)

### duty
*noun · IPA /ˈdjuː.ti/ · frequency rank #1,994*
That which one is morally or legally obligated to do.

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