décelervsdécollerWhat's the difference?

Which to use

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

#18,721
“déceler” frequency rank
#12,771
“décoller” frequency rank
31492
confusion score

Side-by-Side Comparison

Feature déceler décoller
Definition Dévoiler ce que quelqu’un cache intentionnellement. Séparer, détacher une chose qui était collée.

Where the eye mixes déceler and décoller

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

7 ch
déceler
8 ch
décoller

Look-alike desk: déceler vs décoller

A purely visual mix-up. déceler (\de.s(ə.)le\) and décoller (\de.kɔ.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 31492, 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\. décoller is at rank #12,771, tagged as averb, pronounced \de.kɔ.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 31492, this pair ranks #303,461 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of déceler vs décoller

Shared letters: cdelré. Private to "déceler": -. Private to "décoller": o.

"déceler" · 7 letters · shape CVCVCVC  ·  "décoller" · 8 letters · shape CVCVCCVC

Frequently Asked Questions

Is swapping "déceler" for "décoller" ever safe?
No. They are said differently (\de.s(ə.)le\ versus \de.kɔ.le\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "déceler" or "décoller" show up more?
"décoller" is the more common of the two: it sits at frequency rank #12,771 in our French list, against #18,721 for "déceler". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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 "décoller" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #303,461 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "déceler" and "décoller" also get mixed up with nearby pairs, the highest-scored neighbour is "décèle vs déceler". Nearby pair

Confusion rank #303,461 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