vœuvsviWhat's the difference?

Quick tell: vœu is a noun, vi is a name, so they fill different roles in a sentence.

Which to use

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

#11,688
“vœu” frequency rank
#3,812
“vi” frequency rank
15500
confusion score

Side-by-Side Comparison

Feature vœu vi
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. Éditeur de texte minimaliste créé en 1976 par Bill Joy, n’utilisant que le clavier, et modal : l’effet de la pression sur une touche du clavier dépend du mode dans lequel on se trouve (mode insertion ou mode commande).

Where the eye mixes vœu and vi

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
vœu
2 ch
vi

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: vœu is \vø\ while vi is \vi.aj\. 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 name), which is usually the fastest check. Our composite confusion score for this pair is 15500, 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\. vi is at rank #3,812, tagged as aname, pronounced \vi.aj\.

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 15500, this pair ranks #392,076 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of vœu vs vi

Shared letters: v. Private to "vœu": . Private to "vi": i.

"vœu" · 3 letters · shape CVV  ·  "vi" · 2 letters · shape CV

Frequently Asked Questions

Can "vœu" and "vi" be used interchangeably?
No - they are not even the same part of speech. "vœu" is a noun and "vi" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "vœu" or "vi"?
"vi" is the more common of the two: it sits at frequency rank #3,812 in our French list, against #11,688 for "vœu". 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