kvskunWhat's the difference?

Quick tell: k is a character, kun is a noun, so they fill different roles in a sentence.

Which to use

“k” is a character and “kun” is a noun - they look or sound alike but fill different roles in a sentence.

#1,310
“k” frequency rank
#20,404
“kun” frequency rank
21714
confusion score

Side-by-Side Comparison

Feature k kun
Definition The eleventh letter of the English alphabet, called kay and written in the Latin script. In the Japanese language, the pronunciation, or reading, of a kanji character as a native Japanese word that means what the character represents, contrasted with on.

Where the spellings diverge

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

1 ch
k
3 ch
kun

Spelling & Dictionary Insight

k and kun form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 extra letter(s) - “k” sits inside “kun” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 21714, derived from the frequency rank of both members and their visual similarity.

k is recorded at frequency rank #1,310, classified as acharacter, pronounced /keɪ/. kun is at rank #20,404, tagged as anoun.

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 21714, this pair ranks #421,895 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

k#1,310
kun#20,404

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "k" and "kun" be used interchangeably?
No, "k" and "kun" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering k vs kun

The fastest way to pick the right one every time.

  • Check the role first: if you need a character, it's “k”; for a noun, it's “kun”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “k” 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