Which to use
“ciel” and “cieux” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,085
- “ciel” frequency rank
- #10,291
- “cieux” frequency rank
- 11376
- confusion score
Side-by-Side Comparison
| Feature | ciel | cieux |
|---|---|---|
| Definition | Espace immense dans lequel se meuvent tous les astres. | Pluriel de ciel, utilisé dans un sens singulier. |
Where the eye mixes ciel and cieux
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. ciel runs 4 letters (CVVC) against cieux's 5 (CVVVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses ciel with cieux
A purely visual mix-up. ciel (\sjɛl\) and cieux (\sjø\) 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 11376, derived from the frequency rank of both members and their visual similarity.
ciel is recorded at frequency rank #1,085, classified as anoun, pronounced \sjɛl\. cieux is at rank #10,291, tagged as anoun, pronounced \sjø\.
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 11376, this pair ranks #409,382 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ciel vs cieux
Shared letters: cei. Private to "ciel": l. Private to "cieux": ux.
"ciel" · 4 letters · shape CVVC · "cieux" · 5 letters · shape CVVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ciel" for "cieux" ever safe?
Which is more common, "ciel" or "cieux"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ciel" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cieux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #409,382 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ciel" and "cieux" also get mixed up with nearby pairs, the highest-scored neighbour is "ciel vs ciro". 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 #409,382 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.