mar vs chatter mark

mar and chatter mark both are nouns.

Word	Noun	Adjective	Verb	Adverb
mar	Yes	No	Yes	No
chatter mark	Yes	No	No	No

As nouns, chatter mark is a hyponym of mar; that is, chatter mark is a word with a more specific, narrower meaning than mar:

mar: a mark or flaw that spoils the appearance of something (especially on a person's body)
chatter mark: a mark made by a chattering tool on the surface of a workpiece

mar (noun)	chatter mark (noun)
a mark or flaw that spoils the appearance of something (especially on a person's body)	a mark made by a chattering tool on the surface of a workpiece
	marks on a glaciated rock caused by the movement of a glacier

mar (verb)	chatter mark (verb)
destroy or injure severely
make imperfect