pork butcher vs butcher

pork butcher and butcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
pork butcher	Yes	No	No	No
butcher	Yes	No	Yes	No

As nouns, butcher is a hypernym of pork butcher; that is, butcher is a word with a broader meaning than pork butcher:

Other hypernyms of pork butcher include meatman.

pork butcher (noun)	butcher (noun)
a vendor of pork and products made from pork	a person who slaughters or dresses meat for market
	a brutal indiscriminate murderer
	a retailer of meat
	someone who makes mistakes because of incompetence

pork butcher (verb)	butcher (verb)
	kill (animals) usually for food consumption