fluff vs frivolity

fluff and frivolity both are nouns.

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

As nouns, fluff and frivolity are synonyms defined as:

Other synonyms of fluff include bagatelle, frippery.

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

fluff (verb)	frivolity (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