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to shake; to jolt; to rock; to swing; to sway
to shake (e.g. the political world); to disturb; to shock; to upset
to put off a batter (by varying one's type of pitch)
母は眠っている子供の肩をそっと揺さ振った。
The mother gently shook the sleeping child's shoulder.
地震が建物を大きく揺さ振る。
An earthquake violently shook the building.
風が木の枝を大きく揺さ振っていた。
The wind was swaying the tree branches widely.