# duper vs duplex

> English confusable word pair

## The two words

### duper
*noun · IPA /ˈduː.pə(ɹ)/ · frequency rank #33,629*
a person who dupes another

### duplex
*adjective · IPA /ˈdu.plɛks/ · frequency rank #24,433*
Double; made up of two parts.

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