vœuvsvouiWhat's the difference?

Quick tell: vœu is a noun, voui is an adverb, so they fill different roles in a sentence.

Which to use

“vœu” is a noun and “voui” is an adverb - they look or sound alike but fill different roles in a sentence.

#11,688
“vœu” frequency rank
#45,950
“voui” frequency rank
57638
confusion score

Side-by-Side Comparison

Feature vœu voui
Definition Promesse faite à Dieu, par laquelle on s’engage à quelque œuvre que l’on croit lui être agréable, et qui n’est pas de précepte. Oui.

Where the eye mixes vœu and voui

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
vœu
4 ch
voui

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: vœu is \vø\ while voui is \vwi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 57638, derived from the frequency rank of both members and their visual similarity.

vœu is recorded at frequency rank #11,688, classified as anoun, pronounced \vø\. voui is at rank #45,950, tagged as anadv, pronounced \vwi\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 57638, this pair ranks #113,831 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of vœu vs voui

Shared letters: uv. Private to "vœu": œ. Private to "voui": io.

"vœu" · 3 letters · shape CVV  ·  "voui" · 4 letters · shape CVVV

Known mistypes of this pair

  • vouiovui · voiu · vuoi · vvoui

Frequently Asked Questions

Can "vœu" and "voui" be used interchangeably?
No - they are not even the same part of speech. "vœu" is a noun and "voui" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "vœu" or "voui"?
"vœu" is the more common of the two: it sits at frequency rank #11,688 in our French list, against #45,950 for "voui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list