perk up vs revive

perk up and revive both are verbs.

Word	Noun	Adjective	Verb	Adverb
perk up	No	No	Yes	No
revive	No	No	Yes	No

As verbs, revive is a hyponym of perk up; that is, revive is a word with a more specific, narrower meaning than perk up:

perk up (verb)	revive (verb)
gain or regain energy	give new life or energy to
cause to be alert and energetic	cause to regain consciousness
	return to consciousness
	be brought back to life, consciousness, or strength
	restore from a depressed, inactive, or unused state