invigorate vs spirit up

invigorate and spirit up both are verbs.

Word	Noun	Adjective	Verb	Adverb
invigorate	No	No	Yes	No
spirit up	No	No	Yes	No

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

Other hyponyms of invigorate include ginger up, jazz up, juice up, pep up, inspirit, spirit.

invigorate (verb)	spirit up (verb)
impart vigor, strength, or vitality to	infuse with spirit
make lively
give life or energy to
heighten or intensify