# their vs theory

> French confusable word pair

## The two words

### their
*determiner · IPA \ðɛə(ɹ)\ · frequency rank #16,023*
Leur, leurs.

### theory
*noun · IPA \ˈθɪə.ɹi\ · frequency rank #23,393*
Théorie.

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