CDS vs cul, What's the Difference?

Which to use

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

#28,477
“CDS” frequency rank: #999
“cul” frequency rank: 29476
confusion score

Side-by-Side Comparison

Feature	CDS	cul
Definition	Séquence codante, région d'une séquence d'ADN codant une séquence d'acides aminés de protéine.	Derrière d’un animal, d’un humain, ses fesses, son postérieur.

Where the eye mixes CDS and cul

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

3 ch

CDS

3 ch

cul

Why the eye confuses CDS with cul

A purely visual mix-up. CDS (\se.de.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 29476, derived from the frequency rank of both members and their visual similarity.

CDS is recorded at frequency rank #28,477, classified as anoun, pronounced \se.de.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 29476, this pair ranks #316,437 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of CDS vs cul

Shared letters: c. Private to "CDS": ds. Private to "cul": lu.

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

Frequently Asked Questions

Is swapping "CDS" for "cul" ever safe?

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

Frequency check: "CDS" vs "cul" - which ranks higher?

"cul" is the more common of the two: it sits at frequency rank #999 in our French list, against #28,477 for "CDS". 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 "CDS" and "cul" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "CDS" 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 #316,437 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"CDS" and "cul" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CDS". Nearby pair

Confusion rank #316,437 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.