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: コウ、あな
Romaji: kou, ana
Kana
Romaji

Name Reading

Kana: のり
Romaji: nori
Kana
Romaji

Meanings

cavity, hole, slit, very, great, exceedingly

Stroke Diagram

1234

Kanji Info

Stroke Count:  4
Radical Number:  39
Frequency:  2052
Grade:  8
Skip Pattern:  1-3-1
Korean Reading:  gong
Chinese Reading:  kong3
Unicode:  5b54
JIS:  3926

Indexes

Halpern Index: 179
Nelson Index: 1265
New Nelson Index: 1282
Spahn Hadamitzky Index: 2c1.1
Four Corner Index: 1241.0
Guide to Remembering Index: 1241
Gakken Index: 1755
Japanese Names Index: 58
Daikanwanjiten Index: 6933
Daikanwanjiten Index and Page: 3.0801
Remembering the kanji Index: 96
Kanji Flashcards Index: 1203
Kodansha Compact Index: 456
Kanji in Context Index: 1881
1999 Kanji Learners Index: 131
2013 Kanji Learners Index: 158
French Remembering the Kanji Index: 97
Remembering the Kanji 6th Index: 100
Essential Kanji Index: 1336
Kodansha Kanji Index: 205
Roo 2001 Kanji Index: 3556
Tuttle Kanji Cards Index: 1028

Words

(あな)
hole; deficit; shortage; missing person (in a team, meeting, etc.); vacancy; opening; flaw; profitable place (or item, etc.) not well known by others; upset victory (with a large payoff); pit (of a theater); hiding place; underbelly (of society, etc.)
孔雀 (くじゃく、くざく、クジャク)
peafowl (incl. the male peacock, female peahen, and young peachick)
瞳孔 (どうこう)
pupil; pupillary
多孔 (たこう)
porous; cavernous; open (weave)
排水孔 (はいすいこう)
osculum; scupper (hole)
孔子 (こうし)
Confucius
穿孔 (せんこう)
perforation; punching (a hole); rupture; punch
鼻孔 (びこう)
nostril; nostrils; naris; nares
針の穴 (はりのあな)
eye of a needle
瞳孔拡張 (どうこうかくちょう)
pupil dilation
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