aïeux vs aux, What's the Difference?

Which to use

“aïeux” is a noun and “aux” is an article - they look or sound alike but fill different roles in a sentence.

#27,331
“aïeux” frequency rank: #58
“aux” frequency rank: 27389
confusion score

Side-by-Side Comparison

Feature	aïeux	aux
Definition	Pluriel de aïeul : tous ceux de qui l’on descend.	Contraction obligatoire de la préposition à et de l'article défini les.

Where the spellings diverge

Shared letters are muted; the letters that actually set aïeux and aux apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch

aïeux

3 ch

aux

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: aïeux is \a.jø\ while aux is \o\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs article), which is usually the fastest check. Our composite confusion score for this pair is 27389, derived from the frequency rank of both members and their visual similarity.

aïeux is recorded at frequency rank #27,331, classified as anoun, pronounced \a.jø\. 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 27389, this pair ranks #329,308 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aïeux vs aux

Shared letters: aux. Private to "aïeux": eï. Private to "aux": -.

"aïeux" · 5 letters · shape VCVVC · "aux" · 3 letters · shape VVC

Frequency comparison

aïeux#27,331

aux#58

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "aïeux" and "aux" be used interchangeably?

No - they are not even the same part of speech. "aïeux" is a noun and "aux" an article, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "aïeux" or "aux"?

"aux" is the more common of the two: it sits at frequency rank #58 in our French list, against #27,331 for "aïeux". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering aïeux vs aux

The fastest way to pick the right one every time.

Check the role first: if you need a noun, it's “aïeux”; for an article, it's “aux”.
See each word in full, definition, IPA, etymology and its other confusables. Full “aïeux” entry
Browse more pairs most likely to be confused. Most confusable