Components
自転 is an exact match with one form of the following word:
自転
BOOST
Reading : じてん   
rotation (usu. on an axis); turning; spin  (see also: 回転)
My mastery:
My current mastery of 自転:
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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 84,378 which gives a rank of 7,814
自転 is the most useful form. 1 additional form is shown below.
This word is a member of our collection of the 10,000 most useful words in Japanese:
• This form is used about 30% of the time
• Google Japan frequency rank: 91,000 (about 2,440,000 results)
• This form appears in Wikipedia's list of JLPT N1 vocabulary (see JLPT collections)
• Wikipedia most common 20000 words rank: 13154
• This form appears in the 24,000 words in the Mainichi Shimbun frequency analysis by Alexandre Girardi
• This form is in band 32 in the EDICT word frequency file (bands go from 1-48, where 1 is most common - each contains about 500 words)
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Example sentences:
かり
ちきゅう
地球
じてん
自転
やめればどうなる
おも
います

Were the earth to stop revolving, what do you suppose would happen?
ちきゅう
地球
じてん
自転
まったら
いったいどうなるだろう
What would happen supposing the earth stopped spinning?
ちきゅう
地球
じてん
自転
している
じょうしき
常識

It's common knowledge that the earth turns on its axis.
じてん
BOOST
My flashcards:
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Usefulness and usage:
• This form is used about 70% of the time
• Google Japan frequency rank: 64,000 (about 5,580,000 results)
• This form appears in the 24,000 words in the Mainichi Shimbun frequency analysis by Alexandre Girardi
• This form is in band 32 in the EDICT word frequency file (bands go from 1-48, where 1 is most common - each contains about 500 words)
VIEW INFLECTIONS
ジ   シ   みずか self   
テン   ころがる to roll (intr.)   ころがす to roll (tr.)   ころげる to roll about   ころ to fall over   
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ウン    say   
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ニ   ふた    ふた two   
ム   private
シャ   くるま car   
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