cas

\kɑ\

/\kɑ\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“cas” sits in 20 confusable pairs (corpus #157) as a noun. The look-alike neighbours are the real trap.

#157
frequency rank, French
8,609
“C” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Accident, aventure, conjoncture, occasion ; fait arrivé, ou qui peut arriver.

Corpus desk

Index FR-cas · cas · French

cas · rank #157 · 0 variants · 20 confusables

  • FREQ-CORE #157
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-DENSE 8,609
  • PHOTO-FINISH vu

Nearest frequency peer: vu (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “cas”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “cas” sits against the nearest ranked French headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

cas vs ce
33% similar
cas vs ci
33% similar
cas vs co
33% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for cas
PropertyValue
Headwordcas
LanguageFrench
Part of speechNoun
IPA\kɑ\
Letters3
Frequency rank#157
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “cas” sits in French frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). cas lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for cas is neighbouring look-alikes ("ce", "ci", …), not just typos; it is anoun pronounced \kɑ\. Frequency #157 among 8,609 “C” headwords. 9 recorded senses keep meaning in play.

Zero misspellings are on record for cas in our index, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "ce", "ci", "co", and more, where similar look or sound leads writers to substitute one word for another in context.

No borrowing history is documented for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is cas, spelled C-A-S.

Definition

  1. 1
    Accident, aventure, conjoncture, occasion ; fait arrivé, ou qui peut arriver.
  2. 2
    Manifestation d’une maladie ou d’un problème chez une personne (typiquement utilisé pour introduire un chiffre).
  3. 3
    Personne qui cause beaucoup de problèmes ou qui a des problèmes psychologiques.
  4. 4
    Occasion ; Situation
  5. 5
    Fait, action, crime.
  6. 6
    Estime.
  7. 7
    Déjection, excrément.
  8. 8
    Derrière ; cul.
  9. 9
    Chacune des différentes formes que prennent certains mots (les pronoms, les noms, quelquefois les adjectifs, les déterminants et les participes) selon leur fonction dans la phrase. En français, seulement les pronoms personnels ont plus d’une forme. Il y a aussi des langues où les cas sont marqués par des particules comme le japonais et le coréen.

Recorded use

Wiktionary examples

These source excerpts show how cas appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Cas fortuit.
  2. Un cas grave, étrange, rare.

Synonyms

affaireconjonctureévénementévènementéventualitéoccasionrencontresituationcas grammatical

This word in other languages

case(English)caso(Español)Fall(Deutsch)caso(Português)

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.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "cas"?
"cas" is spelled C-A-S. The IPA pronunciation is \kɑ\.
What does "cas" mean?
As a noun, "cas" means: Accident, aventure, conjoncture, occasion ; fait arrivé, ou qui peut arriver.
What words are commonly confused with "cas"?
"cas" is commonly confused with "ce", "ci", "co". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "cas"?
The IPA (International Phonetic Alphabet) transcription for "cas" is \kɑ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cas" come from?
"cas" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "cas", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 3 letters (nearest by frequency rank).

ici#153car#162mal#164nos#147

What to do next

You've looked up "cas". Here's where to go from here.

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list