jiggle vs agitate

jiggle is a noun but agitate is not a noun.

Word	Noun	Adjective	Verb	Adverb
jiggle	Yes	No	Yes	No
agitate	No	No	Yes	No

As verbs, agitate is a hypernym of jiggle; that is, agitate is a word with a broader meaning than jiggle:

Other hypernyms of jiggle include shake.

jiggle (noun)	agitate (noun)
a slight irregular shaking motion

jiggle (verb)	agitate (verb)
move to and fro	change the arrangement or position of
	cause to be agitated, excited, or roused
	move very slightly
	move or cause to move back and forth
	try to stir up public opinion
	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for