trip vs foul-up

trip and foul-up both are nouns.

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

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

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

trip (noun)	foul-up (noun)
a journey for some purpose (usually including the return)	an embarrassing mistake
an unintentional but embarrassing blunder
a light or nimble tread
a catch mechanism that acts as a switch
an accidental misstep threatening (or causing) a fall
an exciting or stimulating experience
a hallucinatory experience induced by drugs

trip (verb)	foul-up (verb)
get high, stoned, or drugged
put in motion or move to act
miss a step and fall or nearly fall
cause to stumble
make a trip for pleasure