katvsKeiWhat's the difference?

Quick tell: kat is a noun, Kei is a name, so they fill different roles in a sentence.

Which to use

“kat” is a noun and “Kei” is a name - they look or sound alike but fill different roles in a sentence.

#30,974
“kat” frequency rank
#29,712
“Kei” frequency rank
60686
confusion score

Side-by-Side Comparison

Feature kat Kei
Definition Gato. Hipocorístico de Keila.

Where the spellings diverge

Shared letters are muted; the letters that actually set kat and Kei apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
kat
3 ch
Kei

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: kat is [kæd] while Kei is [ˈkej]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 60686, derived from the frequency rank of both members and their visual similarity.

kat is recorded at frequency rank #30,974, classified as anoun, pronounced [kæd]. 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 60686, this pair ranks #58,092 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of kat vs Kei

Shared letters: k. Private to "kat": at. Private to "Kei": ei.

"kat" · 3 letters · shape CVC  ·  "Kei" · 3 letters · shape CVV

Frequency comparison

kat#30,974
Kei#29,712

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "kat" and "Kei" be used interchangeably?
No - they are not even the same part of speech. "kat" is a noun and "Kei" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "kat" or "Kei"?
"Kei" is the more common of the two: it sits at frequency rank #29,712 in our Spanish list, against #30,974 for "kat". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering kat vs Kei

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “kat”; for a name, it's “Kei”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “kat” 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 FrequencyWords open word-frequency list