CSSvsculWhich spelling fits?

Which to use

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

#18,705
“CSS” frequency rank
#999
“cul” frequency rank
19704
confusion score

Side-by-Side Comparison

Feature CSS cul
Definition Séquence d’instructions de rendu visuel, auditif ou tactile d’une ressource HTML ou XML. Derrière d’un animal, d’un humain, ses fesses, son postérieur.

Where the eye mixes CSS and cul

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
CSS
3 ch
cul

Why the eye confuses CSS with cul

A purely visual mix-up. CSS (\se ɛ.s‿ɛs\) and cul (\ky\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 19704, derived from the frequency rank of both members and their visual similarity.

CSS is recorded at frequency rank #18,705, classified as anoun, pronounced \se ɛ.s‿ɛs\. cul is at rank #999, tagged as anoun, pronounced \ky\.

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 19704, this pair ranks #371,958 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of CSS vs cul

Shared letters: c. Private to "CSS": s. Private to "cul": lu.

"CSS" · 3 letters · shape CCC  ·  "cul" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "CSS" for "cul" ever safe?
No. They are said differently (\se ɛ.s‿ɛs\ versus \ky\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "CSS" or "cul" show up more?
"cul" is the more common of the two: it sits at frequency rank #999 in our French list, against #18,705 for "CSS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "CSS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cul" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #371,958 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CSS" and "cul" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CSS". Nearby pair

Confusion rank #371,958 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