trip vs blunder

trip and blunder both are nouns.

Word	Noun	Adjective	Verb	Adverb
trip	Yes	No	Yes	No
blunder	Yes	No	Yes	No

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

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

trip (noun)	blunder (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)	blunder (verb)
get high, stoned, or drugged	utter impulsively
put in motion or move to act	make one's way clumsily or blindly
miss a step and fall or nearly fall	commit a faux pas or a fault or make a serious mistake
cause to stumble
make a trip for pleasure