Components
こする is an exact match with one form of the following word:
こする
BOOST
'ru' godan verb, transitive verb
to rub; to scrub  (often written with kana only)
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My current mastery of こする:
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My flashcards:
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Usefulness and usage:
Kanshudo usefulness level: 5 (among the 10,000 most useful words in Japanese)
• Kanshudo usefulness level is based on a usefulness score of 84,579 which gives a rank of 7,811
こする is the most useful form. 2 additional forms are shown below.
This word is a member of our collection of the 10,000 most useful words in Japanese:
• This form is used about 60% of the time
• Google Japan frequency rank: 68,000 (about 4,930,000 results)
• This form appears in the 1998 'Ichimango goi bunruishuu' frequent word list by Senmon Kyouiku
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Example sentences:
よご
れた
こすってはいけません
Never rub the eyes when the hands are dirty.
かれ
ドア
どろ
こすり
とした

He scraped mud from the door.
かのじょ
彼女
こすった
She rubbed her eyes.
擦る
BOOST
Reading : こする   
My flashcards:
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Usefulness and usage:
• This form is used about 30% of the time
• Google Japan frequency rank: 87,000 (about 2,730,000 results)
• This form appears in Wikipedia's list of JLPT N2 vocabulary (see JLPT collections)
• iknow! Core 6000 rank: 5027 (see iKnow! collections)
• Routledge most useful 5000 words rank: 4634
• This form appears in the 1998 'Ichimango goi bunruishuu' frequent word list by Senmon Kyouiku
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錯る
BOOST
Reading : こする   
My flashcards:
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Usefulness and usage:
• This form is used about 10% of the time
• Google Japan frequency rank: 162,000 (about 481,000 results)
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サツ   す to chafe, rub   すれる to wear out, to be rubbed   
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サツ    surmise, inspect   
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サイ   まつ festival   まつ to deify, enshrine   
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ジ   シ   しめ to show   
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ニ   ふた    ふた two   
ショウ   こ-    お-    ちいさい small   
ニク body part   
また again   
roof   
hand
サク    confused   
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セキ   シャク   ancient; old   むかし ancient   
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ニチ   ジツ   sun; day   ひ    -か    
キョウ   とも together   
キン   コン   かね gold; money   
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ジン   ニン   ひと man   
eight
オウ    king   
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イチ   イツ   ひと    ひと- one   
ド   ト   ground; earth   つち ground, earth, soil   
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