Which to use
“ait” is a verb and “au” is an article - they look or sound alike but fill different roles in a sentence.
- #538
- “ait” frequency rank
- #24
- “au” frequency rank
- 562
- confusion score
Side-by-Side Comparison
| Feature | ait | au |
|---|---|---|
| Definition | Troisième personne du singulier du subjonctif présent du verbe auxiliaire avoir. | Contraction de la préposition à et de l'article défini le. |
Where the eye mixes ait and au
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses ait with au
These two trip readers on the page rather than in the ear: ait is \ɛ\ while au is \o\. 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 (verb vs article), which is usually the fastest check. Our composite confusion score for this pair is 562, derived from the frequency rank of both members and their visual similarity.
ait is recorded at frequency rank #538, classified as averb, pronounced \ɛ\. au is at rank #24, tagged as anarticle, pronounced \o\.
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 562, this pair ranks #439,460 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ait vs au
Shared letters: a. Private to "ait": it. Private to "au": u.
"ait" · 3 letters · shape VVC · "au" · 2 letters · shape VV
Frequently Asked Questions
Do "ait" and "au" mean the same thing in a sentence?
Frequency check: "ait" vs "au" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ait" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "au" - compare definitions side by side with the headword page. Word entry
- This pair ranks #439,460 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ait" and "au" also get mixed up with nearby pairs, the highest-scored neighbour is "ait vs aur". Nearby pair
Confusion rank #439,460 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.