Revolution, Rotation, Turning, Circling
noun, verbal noun
It doesn't matter how many times a rotation goes around, it's still a rotation.
せんかい
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
ガレージで八の字旋回の練習をしてみました。
I practiced a figure eight turn in the garage.