déclenchevsdéclencherConfusable pair

Quick tell: déclenche is a noun, déclencher is a verb, so they fill different roles in a sentence.

Which to use

“déclenche” is a noun and “déclencher” is a verb - they look or sound alike but fill different roles in a sentence.

#11,205
“déclenche” frequency rank
#8,991
“déclencher” frequency rank
20196
confusion score

Side-by-Side Comparison

Feature déclenche déclencher
Definition Appareil qui sert à séparer deux pièces d’une machine. Manœuvrer la déclenche pour séparer dans une machine ou dans un ensemble mécanique deux pièces qui ordinairement sont liées.

Where the eye mixes déclenche and déclencher

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. déclenche runs 9 letters (CVCCVCCCV) against déclencher's 10 (CVCCVCCCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
déclenche
10 ch
déclencher

Why the eye confuses déclenche with déclencher

These two trip readers on the page rather than in the ear: déclenche is \de.klɑ̃ʃ\ while déclencher is \de.klɑ̃.ʃe\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “déclenche” sits inside “déclencher”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 20196, derived from the frequency rank of both members and their visual similarity.

déclenche is recorded at frequency rank #11,205, classified as anoun, pronounced \de.klɑ̃ʃ\. déclencher is at rank #8,991, tagged as averb, pronounced \de.klɑ̃.ʃe\.

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 20196, this pair ranks #369,495 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of déclenche vs déclencher

Shared letters: cdehlné. Private to "déclenche": -. Private to "déclencher": r.

"déclenche" · 9 letters · shape CVCCVCCCV  ·  "déclencher" · 10 letters · shape CVCCVCCCVC

Frequently Asked Questions

Can "déclenche" and "déclencher" be used interchangeably?
No - they are not even the same part of speech. "déclenche" is a noun and "déclencher" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "déclenche" or "déclencher"?
"déclencher" is the more common of the two: it sits at frequency rank #8,991 in our French list, against #11,205 for "déclenche". 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 "déclenche" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "déclencher" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #369,495 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "déclenche" and "déclencher" also get mixed up with nearby pairs, the highest-scored neighbour is "déclenche vs déclenchées". Nearby pair

Confusion rank #369,495 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