Jisho

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Noun, Suru verb, Intransitive verb
1. rotation; revolution; turn; spin
Noun, Suru verb, Intransitive verb
2. working (e.g. of one's mind); function
Noun, Suru verb, Intransitive verb
3. turnover (of goods, funds, etc.); circulation; flow (of customers)
Noun, Suru verb, Intransitive verb
4. rotation; curlMathematics
Noun
5. slalom (alpine skiing event)Sports, Abbreviation, See also 回転競技
Wikipedia definition
6. RotationA rotation is a circular movement of an object around a center of rotation. A three-dimensional object rotates always around an imaginary line called a rotation axis. If the axis is within the body, and passes through its center of mass the body is said to rotate upon itself, or spin. A rotation about an external point, e.g. the Earth about the Sun, is called a revolution or orbital revolution, typically when it is produced by gravity.
Read “Rotation” on English Wikipedia
Read “回転” on Japanese Wikipedia
Read “Rotation” on DBpedia
Other forms
廻転 【かいてん】
Notes
廻転: Rarely-used kanji form.

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