Which to use
“Cai” is a name and “cair” is a verb - they look or sound alike but fill different roles in a sentence.
- #30,718
- “Cai” frequency rank
- #47,515
- “cair” frequency rank
- 78233
- confusion score
Side-by-Side Comparison
| Feature | Cai | cair |
|---|---|---|
| Definition | A surname from Chinese. | To go. |
Letter map: Cai vs cair
Shared letters muted; letters that set Cai and cair apart highlighted. Shared run: 3. Cai runs 3 letters (CVV) against cair's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: Cai vs cair
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Cai is aname and cairaverb. On the page they differ by 1 extra letter(s) - “Cai” sits inside “cair”. Our composite confusion score for this pair is 78233, derived from the frequency rank of both members and their visual similarity.
Cai is recorded at frequency rank #30,718, classified as aname. cair is at rank #47,515, tagged as averb.
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 78233, this pair ranks #25,119 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of Cai vs cair
Shared letters: aci. Private to "Cai": -. Private to "cair": r.
"Cai" · 3 letters · shape CVV · "cair" · 4 letters · shape CVVC
Known mistypes of this pair
- cair ← acir · cairr · cari · ccair · ciar
Frequently Asked Questions
Do "Cai" and "cair" mean the same thing in a sentence?
Which is more common, "Cai" or "cair"?
Useful next steps
Pair "Cai" vs "cair" is on the table, pick a follow-up below.
- Full dictionary entry for "Cai" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cair" - compare definitions side by side with the headword page. Word entry
- This pair ranks #25,119 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Cai" and "cair" 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 #25,119 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.