make happy vs carouse

make happy is not a noun while carouse is a noun.

Word	Noun	Adjective	Verb	Adverb
make happy	No	No	Yes	No
carouse	Yes	No	Yes	No

As verbs, carouse is a hyponym of make happy; that is, carouse is a word with a more specific, narrower meaning than make happy:

make happy: celebrate noisily, often indulging in drinking; engage in uproarious festivities
carouse: engage in boisterous, drunken merrymaking

Other hyponyms of make happy include riot, roister.

make happy (noun)	carouse (noun)
	revelry in drinking; a merry drinking party

make happy (verb)	carouse (verb)
celebrate noisily, often indulging in drinking; engage in uproarious festivities	engage in boisterous, drunken merrymaking