punch vs KO punch

punch and KO punch both are nouns.

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

As nouns, KO punch is a hyponym of punch; that is, KO punch is a word with a more specific, narrower meaning than punch:

punch (noun)	KO punch (noun)
(boxing) a blow with the fist	a hard punch that renders the opponent unable to continue boxing
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

punch (verb)	KO 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