castesvscaussesWhat's the difference?

Which to use

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

#31,394
“castes” frequency rank
#48,974
“causses” frequency rank
80368
confusion score

Side-by-Side Comparison

Feature castes causses
Definition Pluriel de caste. Pluriel de causse.

Where the eye mixes castes and causses

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. castes runs 6 letters (CVCCVC) against causses's 7 (CVVCCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
castes
7 ch
causses

Visual trap between castes and causses

A purely visual mix-up. castes (\kast\) and causses (\kos\) 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 80368, derived from the frequency rank of both members and their visual similarity.

castes is recorded at frequency rank #31,394, classified as anoun, pronounced \kast\. causses is at rank #48,974, tagged as anoun, pronounced \kos\.

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 80368, this pair ranks #21,124 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of castes vs causses

Shared letters: aces. Private to "castes": t. Private to "causses": u.

"castes" · 6 letters · shape CVCCVC  ·  "causses" · 7 letters · shape CVVCCVC

Known mistypes of this pair

  • castes ← acstes · casets · casstes · castess · castse · casttes · catses · ccastes
  • causses ← acusses · casuses · causess · caussess · caussse · ccausses · cuasses

Frequently Asked Questions

Do "castes" and "causses" mean the same thing in a sentence?
No. They are said differently (\kast\ versus \kos\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "castes" or "causses"?
"castes" is the more common of the two: it sits at frequency rank #31,394 in our French list, against #48,974 for "causses". 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 "castes" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "causses" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #21,124 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "castes" and "causses" also get mixed up with nearby pairs, the highest-scored neighbour is "causses vs crosses". 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 #21,124 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