Which to use
“AEC” is an adjective and “aux” is an article - they look or sound alike but fill different roles in a sentence.
- #37,154
- “AEC” frequency rank
- #58
- “aux” frequency rank
- 37212
- confusion score
Side-by-Side Comparison
| Feature | AEC | aux |
|---|---|---|
| Definition | Avant l’ère commune. Note d’usage : Placé après une année, un siècle ou un millénaire. | Contraction obligatoire de la préposition à et de l'article défini les. |
Where the eye mixes AEC and aux
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between AEC and aux
These two trip readers on the page rather than in the ear: AEC is \a.ø.se\ while aux is \o\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs article), which is usually the fastest check. Our composite confusion score for this pair is 37212, derived from the frequency rank of both members and their visual similarity.
AEC is recorded at frequency rank #37,154, classified as anadj, pronounced \a.ø.se\. aux is at rank #58, 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 37212, this pair ranks #264,079 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of AEC vs aux
Shared letters: a. Private to "AEC": ce. Private to "aux": ux.
"AEC" · 3 letters · shape VVC · "aux" · 3 letters · shape VVC
Frequently Asked Questions
Is swapping "AEC" for "aux" ever safe?
Which is more common, "AEC" or "aux"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "AEC" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #264,079 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "AEC" and "aux" also get mixed up with nearby pairs, the highest-scored neighbour is "AEC vs aves". Nearby pair
Confusion rank #264,079 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.