oi vs oui, What's the Difference?

Which to use

“oi” and “oui” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#11,081
“oi” frequency rank: #44,386
“oui” frequency rank: 55467
confusion score

Side-by-Side Comparison

Feature	oi	oui
Definition	Said to get someone's attention; hey.	Synonym of yes.

Where the eye mixes oi and oui

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

2 ch

3 ch

oui

Visual trap between oi and oui

A purely visual mix-up. oi (/ɔɪ/) and oui (/wiː/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55467, derived from the frequency rank of both members and their visual similarity.

oi is recorded at frequency rank #11,081, classified as anintj, pronounced /ɔɪ/. oui is at rank #44,386, tagged as anintj, pronounced /wiː/.

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 55467, this pair ranks #133,421 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of oi vs oui

Shared letters: io. Private to "oi": -. Private to "oui": u.

"oi" · 2 letters · shape VV · "oui" · 3 letters · shape VVV

Frequently Asked Questions

Can "oi" and "oui" be used interchangeably?

No. They are said differently (/ɔɪ/ versus /wiː/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "oi" or "oui"?

"oi" is the more common of the two: it sits at frequency rank #11,081 in our English list, against #44,386 for "oui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "oi" and "oui" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "oi" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "oui" - compare definitions side by side with the headword page. Word entry
This pair ranks #133,421 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"oi" and "oui" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs oui". Nearby pair

Confusion rank #133,421 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.