Which to use
“cas” is an adjective and “CE” is a name - they look or sound alike but fill different roles in a sentence.
- #14,713
- “cas” frequency rank
- #9,145
- “CE” frequency rank
- 23858
- confusion score
Side-by-Side Comparison
| Feature | cas | CE |
|---|---|---|
| Definition | Abbreviation of casual. | Initialism of Common Era, Current Era, or Christian Era. Equivalent of AD. Like other era initialisms, often written in small caps. |
Letter map: cas vs CE
Shared letters muted; letters that set cas and CE apart highlighted. Shared run: 1.
Part-of-speech tell for cas / CE
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cas is anadjective and CEaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 23858, derived from the frequency rank of both members and their visual similarity.
cas is recorded at frequency rank #14,713, classified as anadj, pronounced /kæʒ/. CE is at rank #9,145, tagged as aname.
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 23858, this pair ranks #406,207 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cas vs CE
Shared letters: c. Private to "cas": as. Private to "CE": e.
"cas" · 3 letters · shape CVC · "CE" · 2 letters · shape CV
Frequently Asked Questions
Do "cas" and "CE" mean the same thing in a sentence?
Which is more common, "cas" or "CE"?
Useful next steps
Done with this confusable. These links stay specific to "cas" and "CE".
- Full dictionary entry for "cas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CE" - compare definitions side by side with the headword page. Word entry
- This pair ranks #406,207 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cas" and "CE" also get mixed up with nearby pairs, the highest-scored neighbour is "cas vs CGT". Nearby pair
Confusion rank #406,207 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.