spectacle vs blunder

spectacle and blunder both are nouns.

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

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

spectacle: a blunder that makes you look ridiculous; used in the phrase `make a spectacle of' yourself
blunder: an embarrassing mistake

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

spectacle (noun)	blunder (noun)
a blunder that makes you look ridiculous; used in the phrase `make a spectacle of' yourself	an embarrassing mistake
an elaborate and remarkable display on a lavish scale
something or someone seen (especially a notable or unusual sight)

spectacle (verb)	blunder (verb)
	utter impulsively
	make one's way clumsily or blindly
	commit a faux pas or a fault or make a serious mistake