coulervscouperWhat's the difference?

Which to use

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

#6,178
“couler” frequency rank
#2,418
“couper” frequency rank
8596
confusion score

Side-by-Side Comparison

Feature couler couper
Definition Se déverser, aller d’un endroit à un autre, en parlant des liquides. Diviser un corps continu, avec quelque chose de tranchant.

Where the eye mixes couler and couper

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
couler
6 ch
couper

Why the eye confuses couler with couper

A purely visual mix-up. couler (\ku.le\) and couper (\ku.pe\) 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 a single letter - l in “couler” becomes p in “couper”. Our composite confusion score for this pair is 8596, derived from the frequency rank of both members and their visual similarity.

couler is recorded at frequency rank #6,178, classified as averb, pronounced \ku.le\. couper is at rank #2,418, tagged as averb, pronounced \ku.pe\.

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 8596, this pair ranks #419,498 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of couler vs couper

Shared letters: ceoru. Private to "couler": l. Private to "couper": p.

"couler" · 6 letters · shape CVVCVC  ·  "couper" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • coulerccouler · coluer · couelr · coulerr · couller · coulre · cuoler · oculer
  • couperccouper · copuer · couepr · couperr · coupper · coupre · cuoper

Frequently Asked Questions

Is swapping "couler" for "couper" ever safe?
No. They are said differently (\ku.le\ versus \ku.pe\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "couler" vs "couper" - which ranks higher?
"couper" is the more common of the two: it sits at frequency rank #2,418 in our French list, against #6,178 for "couler". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "couler" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "couper" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #419,498 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "couler" and "couper" also get mixed up with nearby pairs, the highest-scored neighbour is "couler vs courber". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #419,498 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