clé vs CX, What's the Difference?

Which to use

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

#1,987
“clé” frequency rank: #32,366
“CX” frequency rank: 34353
confusion score

Side-by-Side Comparison

Feature	clé	CX
Definition	Instrument de métal que l’on introduit dans une serrure pour ouvrir ou fermer un accès. Ancienne clé à panneton que l'on place et fait tourner dans la serrure d'une porte, d'un coffre, etc.	Expérience client.

Where the eye mixes clé and CX

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. clé runs 3 letters (CCV) against CX's 2 (CC) - the length gap alone is often enough to separate them once you know to check it.

3 ch

clé

2 ch

Why the eye confuses clé with CX

A purely visual mix-up. clé (\kle\) and CX (\siːɛks\) 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 34353, derived from the frequency rank of both members and their visual similarity.

clé is recorded at frequency rank #1,987, classified as anoun, pronounced \kle\. CX is at rank #32,366, tagged as anoun, pronounced \siːɛks\.

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 34353, this pair ranks #284,433 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of clé vs CX

Shared letters: c. Private to "clé": lé. Private to "CX": x.

"clé" · 3 letters · shape CCV · "CX" · 2 letters · shape CC

Frequently Asked Questions

Can "clé" and "CX" be used interchangeably?

No. They are said differently (\kle\ versus \siːɛks\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "clé" or "CX"?

"clé" is the more common of the two: it sits at frequency rank #1,987 in our French list, against #32,366 for "CX". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

Full dictionary entry for "clé" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "CX" - compare definitions side by side with the headword page. Word entry
This pair ranks #284,433 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"clé" and "CX" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CX". Nearby pair

Confusion rank #284,433 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.