Which to use
“Kai” is a name and “kay” is a noun - they look or sound alike but fill different roles in a sentence.
- #17,464
- “Kai” frequency rank
- #17,983
- “kay” frequency rank
- 35447
- confusion score
Side-by-Side Comparison
| Feature | Kai | kay |
|---|---|---|
| Definition | Prénom masculin. | K, k (lettre latine). |
Letter map: Kai vs kay
Shared letters muted; letters that set Kai and kay apart highlighted. Shared run: 2.
Grammar separator: Kai vs kay
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kai is aname and kayanoun. On the page they differ by a single letter - i in “Kai” becomes y in “kay”. Our composite confusion score for this pair is 35447, derived from the frequency rank of both members and their visual similarity.
Kai is recorded at frequency rank #17,464, classified as aname. kay is at rank #17,983, tagged as anoun, pronounced \ˈkeɪ\.
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 35447, this pair ranks #276,708 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Kai vs kay
Shared letters: ak. Private to "Kai": i. Private to "kay": y.
"Kai" · 3 letters · shape CVV · "kay" · 3 letters · shape CVV
Frequently Asked Questions
Is swapping "Kai" for "kay" ever safe?
Which is more common, "Kai" or "kay"?
Useful next steps
Done with this confusable. These links stay specific to "Kai" and "kay".
- Full dictionary entry for "Kai" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "kay" - compare definitions side by side with the headword page. Word entry
- This pair ranks #276,708 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "Kai" and "kay" also get mixed up with nearby pairs, the highest-scored neighbour is "kay vs ky". Nearby pair
Confusion rank #276,708 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.