casus
The verdict
“casus” is a moderately-common French word, ranked #48,398 in French word frequency and used as a noun.
- #48,398
- frequency rank, French
- 5
- letters
- 7
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Chute.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | casus |
| Language | French |
| Part of speech | Noun |
| Letters | 5 |
| Frequency rank | #48,398 |
| Misspellings tracked | 7 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “casus” sits in French frequency
Spelling & Dictionary Insight
The French entry for casus is 5 letters long, classified as a noun. Corpus data places it at rank #48,398 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 7 likely wrong-spelling variants for casus, with forms such as "acsus", "cassu", and "cassus". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "CSS", "CSU", "crus", and more, where similar look or sound leads writers to substitute one word for another in context.
This headword's origin isn't recorded in our source data, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct French form is casus, spelled C-A-S-U-S.
Definition
- 1Chute.
- 2Déclin, chute, ruine, perte.
- 3Hasard, occasion.
- 4Accident, sinistre.
- 5Cas grammatical dans une déclinaison avec diverses désinences.
Synonyms
Common misspellings
Also misspelled as: acsus,cassu,cassus,casuss,causs,ccasus,csaus
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of casus - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "casus"?
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Using “casus”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is C-A-S-U-S - every other letter order is a misspelling in standard orthography.
- Don't mix it up with “CSS” - see the side-by-side comparison. casus vs CSS
- Browse more French words and confusable pairs in the same reference. French words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.