décelervsdécoulerWhat's the difference?

Which to use

“déceler” and “découler” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,721
“déceler” frequency rank
#35,908
“découler” frequency rank
54629
confusion score

Side-by-Side Comparison

Feature déceler découler
Definition Dévoiler ce que quelqu’un cache intentionnellement. Couler peu à peu et de suite.

Where the eye mixes déceler and découler

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. déceler runs 7 letters (CVCVCVC) against découler's 8 (CVCVVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
déceler
8 ch
découler

Visual trap between déceler and découler

A purely visual mix-up. déceler (\de.s(ə.)le\) and découler (\de.ku.le\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 54629, derived from the frequency rank of both members and their visual similarity.

déceler is recorded at frequency rank #18,721, classified as averb, pronounced \de.s(ə.)le\. découler is at rank #35,908, tagged as averb, pronounced \de.ku.le\.

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 54629, this pair ranks #132,725 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of déceler vs découler

Shared letters: cdelré. Private to "déceler": -. Private to "découler": ou.

"déceler" · 7 letters · shape CVCVCVC  ·  "découler" · 8 letters · shape CVCVVCVC

Frequently Asked Questions

Is swapping "déceler" for "découler" ever safe?
No. They are said differently (\de.s(ə.)le\ versus \de.ku.le\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "déceler" or "découler"?
"déceler" is the more common of the two: it sits at frequency rank #18,721 in our French list, against #35,908 for "découler". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "déceler" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "découler" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #132,725 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "déceler" and "découler" also get mixed up with nearby pairs, the highest-scored neighbour is "découler vs dérouter". Nearby pair

Confusion rank #132,725 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