Which to use
“altérer” is a verb and “alternée” is a noun - they look or sound alike but fill different roles in a sentence.
- #22,157
- “altérer” frequency rank
- #30,892
- “alternée” frequency rank
- 53049
- confusion score
Side-by-Side Comparison
| Feature | altérer | alternée |
|---|---|---|
| Definition | Modifier dans sa nature, dans sa structure, un corps. | Espèce de papillon, de nom scientifique Epirrhoe alternata. |
Where the eye mixes altérer and alternée
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. altérer runs 7 letters (VCCVCVC) against alternée's 8 (VCCVCCVV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between altérer and alternée
These two trip readers on the page rather than in the ear: altérer is \al.te.ʁe\ while alternée 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 53049, derived from the frequency rank of both members and their visual similarity.
altérer is recorded at frequency rank #22,157, classified as averb, pronounced \al.te.ʁe\. alternée is at rank #30,892, tagged as anoun, 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 53049, this pair ranks #143,453 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of altérer vs alternée
Shared letters: aelrté. Private to "altérer": -. Private to "alternée": n.
"altérer" · 7 letters · shape VCCVCVC · "alternée" · 8 letters · shape VCCVCCVV
Frequently Asked Questions
Is swapping "altérer" for "alternée" ever safe?
Frequency check: "altérer" vs "alternée" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "altérer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "alternée" - compare definitions side by side with the headword page. Word entry
- This pair ranks #143,453 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "altérer" and "alternée" also get mixed up with nearby pairs, the highest-scored neighbour is "altérée vs alternée". Nearby pair
Confusion rank #143,453 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.