Which to use
“k” is a character and “Kei” is a name - they look or sound alike but fill different roles in a sentence.
- #1,381
- “k” frequency rank
- #29,712
- “Kei” frequency rank
- 31093
- confusion score
Side-by-Side Comparison
| Feature | k | Kei |
|---|---|---|
| Definition | Undécima letra del alfabeto español y octava consonante. Su nombre es ka. | Hipocorístico de Keila. |
Where the eye mixes k and Kei
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses k with Kei
These two trip readers on the page rather than in the ear: k is [ˈka] while Kei is [ˈkej]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “k” sits inside “Kei”, and the parts of speech differ too (character vs name), which is usually the fastest check. Our composite confusion score for this pair is 31093, derived from the frequency rank of both members and their visual similarity.
k is recorded at frequency rank #1,381, classified as acharacter, pronounced [ˈka]. Kei is at rank #29,712, tagged as aname, pronounced [ˈkej].
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 31093, this pair ranks #208,822 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of k vs Kei
Shared letters: k. Private to "k": -. Private to "Kei": ei.
"k" · 1 letters · shape C · "Kei" · 3 letters · shape CVV
Frequently Asked Questions
Is swapping "k" for "Kei" ever safe?
Which is more common, "k" or "Kei"?
After this comparison
Eye-level mix-up between "k" and "Kei" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "k" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Kei" - compare definitions side by side with the headword page. Word entry
- This pair ranks #208,822 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "k" and "Kei" also get mixed up with nearby pairs, the highest-scored neighbour is "keen vs Kei". Nearby pair
Confusion rank #208,822 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.