Which to use
“alléger” and “altérer” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,865
- “alléger” frequency rank
- #22,157
- “altérer” frequency rank
- 40022
- confusion score
Side-by-Side Comparison
| Feature | alléger | altérer |
|---|---|---|
| Definition | Soulager d’une partie d’un fardeau. | Modifier dans sa nature, dans sa structure, un corps. |
Where the eye mixes alléger and altérer
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. alléger and altérer follow the identical consonant-vowel pattern (VCCVCVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: alléger vs altérer
A purely visual mix-up. alléger (\a(l).le.ʒe\) 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 2 positions. Our composite confusion score for this pair is 40022, derived from the frequency rank of both members and their visual similarity.
alléger is recorded at frequency rank #17,865, classified as averb, pronounced \a(l).le.ʒe\. 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 40022, this pair ranks #243,613 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of alléger vs altérer
Shared letters: aelré. Private to "alléger": g. Private to "altérer": t.
"alléger" · 7 letters · shape VCCVCVC · "altérer" · 7 letters · shape VCCVCVC
Frequently Asked Questions
Is swapping "alléger" for "altérer" ever safe?
Which is more common, "alléger" or "altérer"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "alléger" 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 #243,613 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "alléger" and "altérer" also get mixed up with nearby pairs, the highest-scored neighbour is "alléger vs allègue". Nearby pair
Confusion rank #243,613 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.