cassievsCassiusTell them apart

Quick tell: cassie is a noun, Cassius is an adjective, so they fill different roles in a sentence.

Which to use

“cassie” is a noun and “Cassius” is an adjective - they look or sound alike but fill different roles in a sentence.

#31,393
“cassie” frequency rank
#30,934
“Cassius” frequency rank
62327
confusion score

Side-by-Side Comparison

Feature cassie Cassius
Definition Variété de mimosa qu’on cultive dans le midi de la France pour ses fleurs jaunes très odorantes employées en parfumerie. Qualifie une montagne de la Bétique.

Letter map: cassie vs Cassius

Shared letters muted; letters that set cassie and Cassius apart highlighted. Shared run: 5.

6 ch
cassie
7 ch
Cassius

Part-of-speech tell for cassie / Cassius

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cassie is anoun and Cassiusanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 62327, derived from the frequency rank of both members and their visual similarity.

cassie is recorded at frequency rank #31,393, classified as anoun, pronounced \ka.si\. Cassius is at rank #30,934, tagged as anadj.

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 62327, this pair ranks #87,720 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of cassie vs Cassius

Shared letters: acis. Private to "cassie": e. Private to "Cassius": u.

"cassie" · 6 letters · shape CVCCVV  ·  "Cassius" · 7 letters · shape CVCCVVC

Known mistypes of this pair

  • cassieacssie · casie · cassei · ccassie · csasie
  • Cassiusacssius · casisus · casius · cassisu · cassiuss · cassuis · ccassius · csasius

Frequently Asked Questions

Is swapping "cassie" for "Cassius" ever safe?
No - they are not even the same part of speech. "cassie" is a noun and "Cassius" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "cassie" or "Cassius" show up more?
"Cassius" is the more common of the two: it sits at frequency rank #30,934 in our French list, against #31,393 for "cassie". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "cassie" vs "Cassius" is on the table, pick a follow-up below.

  • Full dictionary entry for "cassie" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Cassius" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #87,720 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cassie" and "Cassius" also get mixed up with nearby pairs, the highest-scored neighbour is "casseur vs Cassius". 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 #87,720 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