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研 means 'sharpen'

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Strokes : 9    Frequency: 546   JLPT: N4    Usefulness: 2    Challenge set: 7    Grade: 3   Intermediate lesson: 13    Beginner lesson: -   Begins 83 words   Used in 167 words   Used in 718 names   Not used as a component
Jōyō (常用)
Common readings
On
   ケン
Kun
   とぐ to sharpen, to whet
Additional readings
Kun    みがく to sharpen
Name    のり
Variants
硏  
Components
⿰  石 stone  开 start; initiate  
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Most useful words by reading
In the most useful 10,000 words in Japanese, 研 is used 6 times, read 2 ways.
Across all words in Japanese, 研 is used 165 times, read 3 ways.
ケン : 149 words FIND ALL
study; research; investigation
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とぐ : 14 words FIND ALL
'gu' godan verb, transitive verb
1. to sharpen; to hone; to whet; to grind
2. to wash (rice)  (esp. 磨ぐ)
(click the word to view an additional 1 meaning and 3 forms)
1
4
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みがく : 2 words FIND ALL
'ku' godan verb, transitive verb
1. to polish; to shine; to brush (e.g. teeth)
2. to refine; to improve
(click the word to view an additional 2 forms)
4
TEST
Quick links
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More information
Wiktionary ⇗ | Unicode.org ⇗ | Google Japan ⇗
Additional data
Henshall: 290 (originally: 272)  Joy o' Kanji : 272  Key to Kanji: 278 

Cascading kanji view

研
ケン   とぐ to sharpen, to whet   
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2
开
start, initiate   
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一
イチ   イツ   ひとつ    ひと- one   
1
廾
twenty; two hands   
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十
ジュウ   ジッ   と    とお ten   
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1
丨
stick   
石
セキ   シャク   コク   いし stone   
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3
丆
whereupon one
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ノ
katakana 'no'; whereupon; splitting away from   
K
口
コウ   ク   くち mouth   
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2
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Search results include information from a variety of sources, including Kanshudo (kanji mnemonics, kanji readings, kanji components, vocab and name frequency data, grammar points), JMdict (vocabulary), Tatoeba (examples), Enamdict (names), KanjiVG (kanji animations and stroke order), and Joy o' Kanji (kanji and radical synopses). Translations provided by Google's Neural Machine Translation engine. For more information see credits.
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