altéréevsalternerWhich spelling fits?

Quick tell: altérée is a adjective, alterner is a verb, so they fill different roles in a sentence.

Which to use

“altérée” is an adjective and “alterner” is a verb - they look or sound alike but fill different roles in a sentence.

#35,804
“altérée” frequency rank
#30,458
“alterner” frequency rank
66262
confusion score

Side-by-Side Comparison

Feature altérée alterner
Definition Féminin singulier de altéré. Faire successivement et tour à tour une même chose en parlant de deux personnes.

Where the eye mixes altérée and alterner

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. altérée runs 7 letters (VCCVCVV) against alterner's 8 (VCCVCCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
altérée
8 ch
alterner

Visual trap between altérée and alterner

These two trip readers on the page rather than in the ear: altérée is \al.te.ʁe\ while alterner is \al.tɛʁ.ne\. 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 (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 66262, derived from the frequency rank of both members and their visual similarity.

altérée is recorded at frequency rank #35,804, classified as anadj, pronounced \al.te.ʁe\. alterner is at rank #30,458, tagged as averb, pronounced \al.tɛʁ.ne\.

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 66262, this pair ranks #68,568 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of altérée vs alterner

Shared letters: aelrt. Private to "altérée": é. Private to "alterner": n.

"altérée" · 7 letters · shape VCCVCVV  ·  "alterner" · 8 letters · shape VCCVCCVC

Known mistypes of this pair

  • alterner ← aletrner · allterner · altenrer · alterenr · alternerr · alternner · alternre · alterrner

Frequently Asked Questions

Can "altérée" and "alterner" be used interchangeably?
No - they are not even the same part of speech. "altérée" is an adjective and "alterner" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "altérée" or "alterner" show up more?
"alterner" is the more common of the two: it sits at frequency rank #30,458 in our French list, against #35,804 for "altérée". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "altérée" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "alterner" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #68,568 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "altérée" and "alterner" also get mixed up with nearby pairs, the highest-scored neighbour is "allégée vs altérée". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #68,568 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list