to shake; to jolt; to rock (cradle); to swing
to blackmail; to extort; to shake down
母は赤ちゃんを優しく揺すった。
The mother gently rocked the baby.
肩を揺すって友人を起こす。
I shake my friend's shoulders to wake him up.
強風が大きな木を激しく揺すっていた。
The strong wind was violently shaking the large tree.