Which to use
“cair” is a verb and “cas” is an adjective - they look or sound alike but fill different roles in a sentence.
- #47,515
- “cair” frequency rank
- #14,713
- “cas” frequency rank
- 62228
- confusion score
Side-by-Side Comparison
| Feature | cair | cas |
|---|---|---|
| Definition | To go. | Abbreviation of casual. |
Letter map: cair vs cas
Shared letters muted; letters that set cair and cas apart highlighted. Shared run: 2.
Part-of-speech tell for cair / cas
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cair is averb and casanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 62228, derived from the frequency rank of both members and their visual similarity.
cair is recorded at frequency rank #47,515, classified as averb. cas is at rank #14,713, tagged as anadj, pronounced /kæʒ/.
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 62228, this pair ranks #89,653 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of cair vs cas
Shared letters: ac. Private to "cair": ir. Private to "cas": s.
"cair" · 4 letters · shape CVVC · "cas" · 3 letters · shape CVC
Known mistypes of this pair
- cair ← acir · cairr · cari · ccair · ciar
Frequently Asked Questions
Do "cair" and "cas" mean the same thing in a sentence?
Frequency check: "cair" vs "cas" - which ranks higher?
What to do next
You've compared "cair" and "cas". Here's where to go from here.
- Full dictionary entry for "cair" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #89,653 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cair" and "cas" also get mixed up with nearby pairs, the highest-scored neighbour is "cair vs CCI". 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 #89,653 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.