cassvsCSVWhich spelling fits?

Which to use

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

#17,896
“cass” frequency rank
#42,263
“CSV” frequency rank
60159
confusion score

Side-by-Side Comparison

Feature cass CSV
Definition Cassis. Format des données dans lequel les valeurs en texte sont séparées par des virgules.

Where the eye mixes cass and CSV

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

4 ch
cass
3 ch
CSV

Look-alike desk: cass vs CSV

A purely visual mix-up. cass (\kas\) and CSV (\se.ɛs.ve\) 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 60159, 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\. CSV is at rank #42,263, tagged as anoun, pronounced \se.ɛs.ve\.

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 60159, this pair ranks #99,141 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of cass vs CSV

Shared letters: cs. Private to "cass": a. Private to "CSV": v.

"cass" · 4 letters · shape CVCC  ·  "CSV" · 3 letters · shape CCC

Known mistypes of this pair

  • cassacss · ccass · csas

Frequently Asked Questions

Do "cass" and "CSV" mean the same thing in a sentence?
No. They are said differently (\kas\ versus \se.ɛs.ve\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "cass" vs "CSV" - which ranks higher?
"cass" is the more common of the two: it sits at frequency rank #17,896 in our French list, against #42,263 for "CSV". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "cass" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CSV" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #99,141 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cass" and "CSV" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CSV". 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 #99,141 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