bacon vs flitch

bacon and flitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
bacon	Yes	No	No	No
flitch	Yes	No	No	No

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

bacon: back and sides of a hog salted and dried or smoked; usually sliced thin and fried
flitch: salted and cured abdominal wall of a side of pork

Other hyponyms of bacon include side of bacon, gammon, bacon strip, Canadian bacon.

bacon (noun)	flitch (noun)
back and sides of a hog salted and dried or smoked; usually sliced thin and fried	salted and cured abdominal wall of a side of pork
	fish steak usually cut from a halibut