pigs' feet vs porc

pigs' feet and porc both are nouns.

Word	Noun	Adjective	Verb	Adverb
pigs' feet	Yes	No	No	No
porc	Yes	No	No	No

As nouns, porc is a hypernym of pigs' feet; that is, porc is a word with a broader meaning than pigs' feet:

pigs' feet: feet or knuckles of hogs used as food; pickled or stewed or jellied
porc: meat from a domestic hog or pig

Other hypernyms of pigs' feet include pork.

pigs' feet (noun)	porc (noun)
feet or knuckles of hogs used as food; pickled or stewed or jellied	meat from a domestic hog or pig