flitch vs side of bacon

flitch and side of bacon both are nouns.

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

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

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

flitch (noun)	side of bacon (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