Which to use
“déduire” and “défaire” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,391
- “déduire” frequency rank
- #10,691
- “défaire” frequency rank
- 22082
- confusion score
Side-by-Side Comparison
| Feature | déduire | défaire |
|---|---|---|
| Definition | Soustraire d’une somme à payer telle ou telle fraction qui n’est pas à verser. | Modifier l’état d’une chose de manière qu’elle ne soit plus ce qu’elle était. |
Where the eye mixes déduire and défaire
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. déduire and défaire follow the identical consonant-vowel pattern (CVCVVCV). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses déduire with défaire
A purely visual mix-up. déduire (\de.dɥiʁ\) and défaire (\de.fɛʁ\) 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 22082, derived from the frequency rank of both members and their visual similarity.
déduire is recorded at frequency rank #11,391, classified as averb, pronounced \de.dɥiʁ\. défaire is at rank #10,691, tagged as averb, pronounced \de.fɛʁ\.
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 22082, this pair ranks #359,889 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of déduire vs défaire
Shared letters: deiré. Private to "déduire": u. Private to "défaire": af.
"déduire" · 7 letters · shape CVCVVCV · "défaire" · 7 letters · shape CVCVVCV
Frequently Asked Questions
Can "déduire" and "défaire" be used interchangeably?
Which is more common, "déduire" or "défaire"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "déduire" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "défaire" - compare definitions side by side with the headword page. Word entry
- This pair ranks #359,889 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "déduire" and "défaire" also get mixed up with nearby pairs, the highest-scored neighbour is "déduire vs déduite". Nearby pair
Confusion rank #359,889 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.