copiervscotiserWhich spelling fits?

Which to use

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

#8,368
“copier” frequency rank
#37,750
“cotiser” frequency rank
46118
confusion score

Side-by-Side Comparison

Feature copier cotiser
Definition Reproduire par écrit. Verser une cotisation.

Where the eye mixes copier and cotiser

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

6 ch
copier
7 ch
cotiser

Why the eye confuses copier with cotiser

A purely visual mix-up. copier (\kɔ.pje\) and cotiser (\kɔ.ti.ze\) 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 46118, derived from the frequency rank of both members and their visual similarity.

copier is recorded at frequency rank #8,368, classified as averb, pronounced \kɔ.pje\. cotiser is at rank #37,750, tagged as averb, pronounced \kɔ.ti.ze\.

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 46118, this pair ranks #197,463 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of copier vs cotiser

Shared letters: ceior. Private to "copier": p. Private to "cotiser": st.

"copier" · 6 letters · shape CVCVVC  ·  "cotiser" · 7 letters · shape CVCVCVC

Known mistypes of this pair

  • copierccopier · coiper · copeir · copierr · copire · coppier · cpoier · ocpier
  • cotiserccotiser · coitser · cotiesr · cotiserr · cotisre · cotisser · cotsier · cottiser

Frequently Asked Questions

Do "copier" and "cotiser" mean the same thing in a sentence?
No. They are said differently (\kɔ.pje\ versus \kɔ.ti.ze\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "copier" or "cotiser"?
"copier" is the more common of the two: it sits at frequency rank #8,368 in our French list, against #37,750 for "cotiser". 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 "copier" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cotiser" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #197,463 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "copier" and "cotiser" also get mixed up with nearby pairs, the highest-scored neighbour is "cotiser vs cruiser". 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 #197,463 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