Which to use
“kai” is a noun and “kay” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #15,404
- “kai” frequency rank
- #18,591
- “kay” frequency rank
- 33995
- confusion score
Side-by-Side Comparison
| Feature | kai | kay |
|---|---|---|
| Definition | Puerto [de mar] | Partícula que se añade al final de una frase para indicar que se está realizando una pregunta acerca de un tema ya aparecido antes en la conversación o sobre el que se tiene un interés particular. |
Same sound, different letters: kai vs kay
Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 2 letters.
Homophone desk: kai vs kay
Say them out loud and nothing separates them: kai and kay carry the same recorded pronunciation, /kaj/. Grammar is what tells them apart: one is anoun, the other apronoun, so most sentences will only accept one of them. They differ by a single letter - i in “kai” becomes y in “kay”. Our composite confusion score for this pair is 33995, derived from the frequency rank of both members and their visual similarity.
kai is recorded at frequency rank #15,404, classified as anoun, pronounced /kaj/. kay is at rank #18,591, tagged as apron, pronounced [ˈkaj].
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 33995, this pair ranks #193,771 of 323,831 scored Spanish 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
Sound matches; spelling doesn't. Use the exits below to lock the right form or check a cousin pair.
- 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 #193,771 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "kai" and "kay" also get mixed up with nearby pairs, the highest-scored neighbour is "Kano vs kay". Nearby pair
Confusion rank #193,771 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.