reinvigorate vs perk up

reinvigorate and perk up both are verbs.

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

As verbs, perk up is a hypernym of reinvigorate; that is, perk up is a word with a broader meaning than reinvigorate:

Other hypernyms of reinvigorate include arouse, brace, energise, energize, stimulate.

reinvigorate (verb)	perk up (verb)
impart vigor, strength, or vitality to	gain or regain energy
	cause to be alert and energetic