CassiusvsCrassusConfusable pair

Which to use

“Cassius” and “Crassus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#30,725
“Cassius” frequency rank
#46,997
“Crassus” frequency rank
77722
confusion score

Side-by-Side Comparison

Feature Cassius Crassus
Definition A male given name from Latin. Marcus Licinius Crassus, a Roman general.

Where the eye mixes Cassius and Crassus

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Cassius (CVCCVVC) and Crassus (CCVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

7 ch
Cassius
7 ch
Crassus

Look-alike desk: Cassius vs Crassus

A purely visual mix-up. Cassius (/ˈkæsi.əs/) and Crassus (/ˈkræsəs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 77722, derived from the frequency rank of both members and their visual similarity.

Cassius is recorded at frequency rank #30,725, classified as aname, pronounced /ˈkæsi.əs/. Crassus is at rank #46,997, tagged as aname, pronounced /ˈkræsəs/.

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 77722, this pair ranks #26,473 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Cassius vs Crassus

Shared letters: acsu. Private to "Cassius": i. Private to "Crassus": r.

"Cassius" · 7 letters · shape CVCCVVC  ·  "Crassus" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • Cassius ← acssius · casisus · casius · cassisu · cassiuss · cassuis · ccassius · csasius
  • Crassus ← carssus · ccrassus · crasssu · crassuss · crasus · crasuss · crrassus · crsasus

Frequently Asked Questions

Is swapping "Cassius" for "Crassus" ever safe?
No. They are said differently (/ˈkæsi.əs/ versus /ˈkræsəs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Cassius" or "Crassus"?
"Cassius" is the more common of the two: it sits at frequency rank #30,725 in our English list, against #46,997 for "Crassus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "Cassius" and "Crassus" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "Cassius" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Crassus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #26,473 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Cassius" and "Crassus" also get mixed up with nearby pairs, the highest-scored neighbour is "crass vs Crassus". 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 #26,473 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list