side of bacon vs flitch

side of bacon and flitch both are nouns.

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

As nouns, side of bacon and flitch are synonyms defined as:

side of bacon and flitch: salted and cured abdominal wall of a side of pork

side of bacon (noun)	flitch (noun)
salted and cured abdominal wall of a side of pork	salted and cured abdominal wall of a side of pork
	fish steak usually cut from a halibut