trip-up vs flub

trip-up and flub both are nouns.

Word	Noun	Adjective	Verb	Adverb
trip-up	Yes	No	No	No
flub	Yes	No	Yes	No

As nouns, flub is a hypernym of trip-up; that is, flub is a word with a broader meaning than trip-up:

Other hypernyms of trip-up include bloomer, blooper, blunder, boner, boo-boo, botch, bungle, foul-up, fuckup, pratfall.

trip-up (noun)	flub (noun)
an unintentional but embarrassing blunder	an embarrassing mistake

trip-up (verb)	flub (verb)
	make a mess of, destroy or ruin