cassvsCSUTell them apart

Which to use

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

#17,896
“cass” frequency rank
#37,262
“CSU” frequency rank
55158
confusion score

Side-by-Side Comparison

Feature cass CSU
Definition Cassis. Centre de supervision urbain : salle ou bâtiment équipé d’écrans affichant en direct les images filmées par des caméras de vidéosurveillance, qui peuvent parfois être manipulées à distance.

Letter map: cass vs CSU

Shared letters muted; letters that set cass and CSU apart highlighted. Shared run: 2.

4 ch
cass
3 ch
CSU

Pair insight - cass / CSU

cass and CSU are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55158, derived from the frequency rank of both members and their visual similarity.

cass is recorded at frequency rank #17,896, classified as anoun, pronounced \kas\. CSU is at rank #37,262, tagged as anoun.

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 55158, this pair ranks #129,301 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cass vs CSU

Shared letters: cs. Private to "cass": a. Private to "CSU": u.

"cass" · 4 letters · shape CVCC  ·  "CSU" · 3 letters · shape CCV

Known mistypes of this pair

  • cassacss · ccass · csas

Frequently Asked Questions

Can "cass" and "CSU" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "cass" vs "CSU" - which ranks higher?
"cass" is the more common of the two: it sits at frequency rank #17,896 in our French list, against #37,262 for "CSU". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "cass" and "CSU".

  • Full dictionary entry for "cass" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CSU" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #129,301 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cass" and "CSU" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CSU". 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 #129,301 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