chainvscopainWhat's the difference?

Which to use

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

#29,689
“chain” frequency rank
#3,449
“copain” frequency rank
33138
confusion score

Side-by-Side Comparison

Feature chain copain
Definition Chaîne. Camarade, personne que l’on apprécie bien.

Where the eye mixes chain and copain

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
chain
6 ch
copain

Visual trap between chain and copain

A purely visual mix-up. chain (\t͡ʃeɪn\) and copain (\kɔ.pɛ̃\) 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 33138, derived from the frequency rank of both members and their visual similarity.

chain is recorded at frequency rank #29,689, classified as anoun, pronounced \t͡ʃeɪn\. copain is at rank #3,449, tagged as anoun, pronounced \kɔ.pɛ̃\.

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 33138, this pair ranks #292,622 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of chain vs copain

Shared letters: acin. Private to "chain": h. Private to "copain": op.

"chain" · 5 letters · shape CCVVC  ·  "copain" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • chaincahin · cchain · chainn · chani · chhain · hcain
  • copainccopain · coapin · copainn · copani · copian · coppain · cpoain · ocpain

Frequently Asked Questions

Do "chain" and "copain" mean the same thing in a sentence?
No. They are said differently (\t͡ʃeɪn\ versus \kɔ.pɛ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "chain" vs "copain" - which ranks higher?
"copain" is the more common of the two: it sits at frequency rank #3,449 in our French list, against #29,689 for "chain". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "chain" and "copain" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "chain" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "copain" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #292,622 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "chain" and "copain" also get mixed up with nearby pairs, the highest-scored neighbour is "chah vs chain". 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 #292,622 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