Which to use
“alerter” and “altérer” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,333
- “alerter” frequency rank
- #22,157
- “altérer” frequency rank
- 39490
- confusion score
Side-by-Side Comparison
| Feature | alerter | altérer |
|---|---|---|
| Definition | Avertir d’un danger en donnant l’alerte. | Modifier dans sa nature, dans sa structure, un corps. |
Where the eye mixes alerter and altérer
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between alerter and altérer
A purely visual mix-up. alerter (\a.lɛʁ.te\) and altérer (\al.te.ʁe\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 39490, derived from the frequency rank of both members and their visual similarity.
alerter is recorded at frequency rank #17,333, classified as averb, pronounced \a.lɛʁ.te\. altérer is at rank #22,157, tagged as averb, pronounced \al.te.ʁe\.
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 39490, this pair ranks #247,547 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of alerter vs altérer
Shared letters: aelrt. Private to "alerter": -. Private to "altérer": é.
"alerter" · 7 letters · shape VCVCCVC · "altérer" · 7 letters · shape VCCVCVC
Known mistypes of this pair
- alerter ← aelrter · aleretr · alerrter · alerterr · alertre · alertter · aletrer · allerter
Frequently Asked Questions
Can "alerter" and "altérer" be used interchangeably?
In ordinary French text, does "alerter" or "altérer" show up more?
After this comparison
Eye-level mix-up between "alerter" and "altérer" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "alerter" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "altérer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #247,547 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "alerter" and "altérer" also get mixed up with nearby pairs, the highest-scored neighbour is "alerter vs alertés". 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 #247,547 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.