stew vs agitation

stew and agitation both are nouns.

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

As nouns, agitation is a hypernym of stew; that is, agitation is a word with a broader meaning than stew:

stew (noun)	agitation (noun)
food prepared by stewing especially meat or fish with vegetables	disturbance usually in protest
agitation resulting from active worry	the act of agitating something; causing it to move around (usually vigorously)
	the feeling of being agitated; not calm
	a state of agitation or turbulent change or development
	a mental state of extreme emotional disturbance

stew (verb)	agitation (verb)
cook slowly and for a long time in liquid
bear a grudge; harbor ill feelings
be in a huff; be silent or sullen