frivolity vs fluff

frivolity and fluff both are nouns.

Word	Noun	Adjective	Verb	Adverb
frivolity	Yes	No	No	No
fluff	Yes	No	Yes	No

As nouns, frivolity and fluff are synonyms defined as:

Other synonyms of frivolity include bagatelle, frippery.

frivolity (noun)	fluff (noun)
acting like a clown or buffoon	a blunder (especially an actor's forgetting the lines)
something of little value or significance	something of little value or significance
the trait of being frivolous; not serious or sensible	any light downy material

frivolity (verb)	fluff (verb)
	ruffle (one's hair) by combing the ends towards the scalp, for a full effect
	erect or fluff up
	make a mess of, destroy or ruin