CDUvsculWhat's the difference?

Which to use

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

#23,795
“CDU” frequency rank
#999
“cul” frequency rank
24794
confusion score

Side-by-Side Comparison

Feature CDU cul
Definition Critère de défaillance unique. Derrière d’un animal, d’un humain, ses fesses, son postérieur.

Where the eye mixes CDU and cul

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
CDU
3 ch
cul

Look-alike desk: CDU vs cul

A purely visual mix-up. CDU (\se.de.y\) 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 24794, derived from the frequency rank of both members and their visual similarity.

CDU is recorded at frequency rank #23,795, classified as anoun, pronounced \se.de.y\. 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 24794, this pair ranks #344,569 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of CDU vs cul

Shared letters: cu. Private to "CDU": d. Private to "cul": l.

"CDU" · 3 letters · shape CCV  ·  "cul" · 3 letters · shape CVC

Frequently Asked Questions

Do "CDU" and "cul" mean the same thing in a sentence?
No. They are said differently (\se.de.y\ versus \ky\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "CDU" or "cul"?
"cul" is the more common of the two: it sits at frequency rank #999 in our French list, against #23,795 for "CDU". 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 "CDU" and "cul" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "CDU" 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 #344,569 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CDU" and "cul" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CDU". Nearby pair

Confusion rank #344,569 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