Physical act of shaking something, often with a back-and-forth motion. Can be literal or figurative.
He was resistant to his opponent's attempts to rattle him and always stayed calm.
The book fell because of the train's shaking.
I woke up from a strong jolt.
shaking up; flustering; rattling
Figurative use: unsettling or disconcerting someone, often to gain an advantage or provoke a reaction.
I wasn't fazed by the opponent's attempt to rattle me.
His question was clearly meant to shake me up.
The early attempt to rattle him worked, drawing out his opponent's mistake.
振動 refers to mechanical vibration or oscillation, whereas 揺さぶり implies a deliberate, often forceful shaking motion.
揺れ is the noun for something swaying or trembling on its own (intransitive), while 揺さぶり is the noun for actively shaking something or someone (transitive).
Standard kanji spelling; the most common written form.
Rare variant using 振り; not commonly used.
Noun form of the verb 揺さぶる (yusaburu), which is a compound of 揺る (yuru, 'to shake') and さぶる (saburu, an old verb meaning 'to shake' or 'to sway'). The exact historical derivation is uncertain, but the word has been used since at least the Edo period.