What does 回転 mean?
回転 is a Japanese noun meaning “rotation, turning” in English. It can also be translated as “working (e.g. of one's mind), turnover (of goods, funds, etc.), slalom” depending on context. It is written as 回転 in kanji, かいてん in hiragana, and kaiten in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
こまはぐるぐる回転した。
The top went around and around.