shaking vs jiggle

shaking and jiggle both are nouns.

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

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

shaking: the act of causing something to move up and down (or back and forth) with quick movements
jiggle: a slight irregular shaking motion

Other hyponyms of shaking include joggle.

shaking (noun)	jiggle (noun)
the act of causing something to move up and down (or back and forth) with quick movements	a slight irregular shaking motion
a shaky motion

shaking (verb)	jiggle (verb)
	move to and fro