sway vs vibrate

sway is a noun but vibrate is not a noun.

Word	Noun	Adjective	Verb	Adverb
sway	Yes	No	Yes	No
vibrate	No	No	Yes	No

As verbs, vibrate is a hyponym of sway; that is, vibrate is a word with a more specific, narrower meaning than sway:

Other hyponyms of sway include waver, weave, lash, oscillate, brachiate.

sway (noun)	vibrate (noun)
pitching dangerously to one side
controlling influence

sway (verb)	vibrate (verb)
move back and forth or sideways	feel sudden intense sensation or emotion
move or walk in a swinging or swaying manner	shake, quiver, or throb; move back and forth rapidly, usually in an uncontrolled manner
cause to move back and forth	move or swing from side to side regularly
win approval or support for	sound with resonance
	be undecided about something; waver between conflicting positions or courses of action