sideburn vs mutton chop

sideburn and mutton chop both are nouns.

Word	Noun	Adjective	Verb	Adverb
sideburn	Yes	No	No	No
mutton chop	Yes	No	No	No

As nouns, sideburn and mutton chop are synonyms defined as:

sideburn and mutton chop: 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 sideburn include burnside, side-whiskers.

sideburn (noun)	mutton chop (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