CaivscairWhat's the difference?

Quick tell: Cai is a name, cair is a verb, so they fill different roles in a sentence.

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.

Where the spellings diverge

Shared letters are muted; the letters that actually set Cai and cair apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

3 ch
Cai
4 ch
cair

Spelling & Dictionary Insight

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

  • cairacir · cairr · cari · ccair · ciar

Frequency comparison

Cai#30,718
cair#47,515

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Cai" and "cair" be used interchangeably?
No - they are not even the same part of speech. "Cai" is a name and "cair" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Cai" or "cair"?
"Cai" is the more common of the two: it sits at frequency rank #30,718 in our English list, against #47,515 for "cair". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering Cai vs cair

The fastest way to pick the right one every time.

  • Check the role first: if you need a name, it's “Cai”; for a verb, it's “cair”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “Cai” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list