lighten vs cheer

lighten is not a noun while cheer is a noun.

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

As verbs, cheer is a hypernym of lighten; that is, cheer is a word with a broader meaning than lighten:

Other hypernyms of lighten include cheer up, chirk up.

As verbs, cheer is a hypernym of lighten; that is, cheer is a word with a broader meaning than lighten:

lighten (noun)	cheer (noun)
	the quality of being cheerful and dispelling gloom
	a cry or shout of approval

lighten (verb)	cheer (verb)
make more cheerful through the use of color	become cheerful
become lighter	spur on or encourage especially by cheers and shouts
alleviate or remove (pressure or stress) or make less oppressive	show approval or good wishes by shouting
become more cheerful	cause (somebody) to feel happier or more cheerful
reduce the weight on; make lighter	give encouragement to
make more cheerful