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、き.く、ききめ、なら.う
Romaji: kou, ki.ku, kikime, nara.u
Kana
Romaji

Meanings

merit, efficacy, efficiency, benefit

Stroke Diagram

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Kanji Info

Stroke Count:  8
Radical Number:  19
Frequency:  538
Grade:  5
Skip Pattern:  1-6-2
Korean Reading:  hyo
Chinese Reading:  xiao4
Unicode:  52b9
JIS:  387A

Indexes

Halpern Index: 1265
Nelson Index: 722
New Nelson Index: 535
Spahn Hadamitzky Index: 2g6.2
Four Corner Index: 0442.7
Guide to Remembering Index: 671
Gakken Index: 515
Japanese Names Index: 653
Daikanwanjiten Index: 2334
Daikanwanjiten Index and Page: 2.0381
Remembering the kanji Index: 1276
Kanji Flashcards Index: 370
Kodansha Compact Index: 216
Read Writing Kanji Third Index: 697
Kanji in Context Index: 501
1999 Kanji Learners Index: 849
2013 Kanji Learners Index: 1164
French Remembering the Kanji Index: 1284
Remembering the Kanji 6th Index: 1369
Essential Kanji Index: 623
Kodansha Kanji Index: 1617
Roo 2001 Kanji Index: 445
Read Writing the Kanji Index: 782
Tuttle Kanji Cards Index: 682

Words

(こう)
efficacy; benefit; efficiency; effect; result; success
効果 (こうか)
effect; effectiveness; efficacy; result; effects (e.g. sound effects, visual effects, special effects)
効率 (こうりつ)
efficiency; efficacy; performance; utility factor
効力 (こうりょく)
effect; efficacy; validity; potency
実効 (じっこう)
practical effect; efficacy; efficiency
甲斐 (かい)
effect; result; worth; use; avail
有効 (ゆうこう)
validity; legality; availability; effectiveness
無効 (むこう)
invalid; no effect; unavailable; illegal
効く (きく)
to be effective; to show effect; to do its work; to carry out its function well; to be possible to use
発効 (はっこう)
coming into effect
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