mutton chop vs side-whiskers

mutton chop and side-whiskers both are nouns.

Word	Noun	Adjective	Verb	Adverb
mutton chop	Yes	No	No	No
side-whiskers	Yes	No	No	No

As nouns, mutton chop and side-whiskers are synonyms defined as:

mutton chop and side-whiskers: facial hair that has grown down the side of a man's face in front of the ears (especially when the rest of the beard is shaved off)

Other synonyms of mutton chop include burnside, sideburn.

mutton chop (noun)	side-whiskers (noun)
facial hair that has grown down the side of a man's face in front of the ears (especially when the rest of the beard is shaved off)	facial hair that has grown down the side of a man's face in front of the ears (especially when the rest of the beard is shaved off)
chop cut from a mature sheep