This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Readings

Kana: クツ、コツ、いわや、いはや、あな
Romaji: kutsu, kotsu, iwaya, ihaya, ana
Kana
Romaji

Meaning

cavern

Stroke Diagram

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Kanji Info

Stroke Count:  13
Radical Number:  116
Frequency: 
Grade:  8
Skip Pattern:  2-3-10
Korean Reading:  gul
Chinese Reading:  ku1
Unicode:  7a9f
JIS:  3722

Indexes

Halpern Index: 2328
Nelson Index: 3331
New Nelson Index: 4206
Spahn Hadamitzky Index: 3m10.6
Four Corner Index: 3027.2
Daikanwanjiten Index: 25552
Daikanwanjiten Index and Page: 8.0669
Remembering the kanji Index: 2615
2013 Kanji Learners Index: 2032
French Remembering the Kanji Index: 1335
Remembering the Kanji 6th Index: 1420
Kodansha Kanji Index: 2923

Words

岩屋 (いわや)
cavern; grotto
洞窟 (どうくつ)
cavern; cave; cave system; grotto
巣窟 (そうくつ)
den; haunt; hangout; home
理屈 (りくつ)
theory; reason
偏屈 (へんくつ)
eccentricity; bigotry; obstinacy
矢倉 (やぐら)
caves dug as tombs in and around Kamakura during the Kamakura and Muromachi periods
石窟 (せっくつ)
cavern; grotto; rock cave
阿片窟 (あへんくつ)
opium den
魔窟 (まくつ)
den of thieves; brothel; red-light district; cluttered room
貧民窟 (ひんみんくつ)
slums
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