sucker punch vs punch

sucker punch and punch both are nouns.

Word	Noun	Adjective	Verb	Adverb
sucker punch	Yes	No	No	No
punch	Yes	No	Yes	No

As nouns, punch is a hypernym of sucker punch; that is, punch is a word with a broader meaning than sucker punch:

Other hypernyms of sucker punch include biff, clout, lick, poke, slug.

sucker punch (noun)	punch (noun)
an unexpected punch	(boxing) a blow with the fist
	a tool for making holes or indentations
	an iced mixed drink usually containing alcohol and prepared for multiple servings; normally served in a punch bowl

sucker punch (verb)	punch (verb)
	deliver a quick blow to
	make a hole into or between, as for ease of separation
	drive forcibly as if by a punch