agitation vs shaking

agitation and shaking both are nouns.

Word	Noun	Adjective	Verb	Adverb
agitation	Yes	No	No	No
shaking	Yes	No	No	No

As nouns, shaking is a hyponym of agitation; that is, shaking is a word with a more specific, narrower meaning than agitation:

agitation: the act of agitating something; causing it to move around (usually vigorously)
shaking: the act of causing something to move up and down (or back and forth) with quick movements

Other hyponyms of agitation include stirring, shake, wag, waggle, worrying.

agitation (noun)	shaking (noun)
disturbance usually in protest	the act of causing something to move up and down (or back and forth) with quick movements
the act of agitating something; causing it to move around (usually vigorously)	a shaky motion
the feeling of being agitated; not calm
a state of agitation or turbulent change or development
a mental state of extreme emotional disturbance