side of bacon vs bacon

side of bacon and bacon both are nouns.

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

As nouns, bacon is a hypernym of side of bacon; that is, bacon is a word with a broader meaning than side of bacon:

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

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