triviality vs fluff

triviality and fluff both are nouns.

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

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

Other hyponyms of triviality include bagatelle, frippery, frivolity.

triviality (noun)	fluff (noun)
something of small importance	a blunder (especially an actor's forgetting the lines)
the quality of being unimportant and petty or frivolous	something of little value or significance
a detail that is considered insignificant	any light downy material

triviality (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