approval vs cheer

approval and cheer both are nouns.

Word	Noun	Adjective	Verb	Adverb
approval	Yes	No	No	No
cheer	Yes	No	Yes	No

As nouns, cheer is a hyponym of approval; that is, cheer is a word with a more specific, narrower meaning than approval:

approval (noun)	cheer (noun)
the formal act of approving	the quality of being cheerful and dispelling gloom
a message expressing a favorable opinion	a cry or shout of approval
a feeling of liking something or someone good
acceptance as satisfactory

approval (verb)	cheer (verb)
	become cheerful
	spur on or encourage especially by cheers and shouts
	show approval or good wishes by shouting
	cause (somebody) to feel happier or more cheerful
	give encouragement to