ci vs cy, What's the Difference?

Which to use

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

#264
“ci” frequency rank: #27,395
“cy” frequency rank: 27659
confusion score

Side-by-Side Comparison

Feature	ci	cy
Definition	ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.	Ci.

Letter map: ci vs cy

Shared letters muted; letters that set ci and cy apart highlighted. Shared run: 1.

2 ch

Pair insight - ci / cy

ci and cy are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - i in “ci” becomes y in “cy”. Our composite confusion score for this pair is 27659, derived from the frequency rank of both members and their visual similarity.

ci is recorded at frequency rank #264, classified as anadv, pronounced \si\. cy is at rank #27,395, tagged as anadv.

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 27659, this pair ranks #327,655 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ci vs cy

Shared letters: c. Private to "ci": i. Private to "cy": y.

"ci" · 2 letters · shape CV · "cy" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "ci" for "cy" ever safe?

No. They differ by a single letter - i in “ci” becomes y in “cy”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

In ordinary French text, does "ci" or "cy" show up more?

"ci" is the more common of the two: it sits at frequency rank #264 in our French list, against #27,395 for "cy". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "ci" vs "cy" is on the table, pick a follow-up below.

Full dictionary entry for "ci" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "cy" - compare definitions side by side with the headword page. Word entry
This pair ranks #327,655 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"ci" and "cy" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs cy". Nearby pair

Confusion rank #327,655 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.