ding vs mar

ding and mar both are nouns.

Word	Noun	Adjective	Verb	Adverb
ding	Yes	No	Yes	No
mar	Yes	No	Yes	No

As nouns, mar is a hypernym of ding; that is, mar is a word with a broader meaning than ding:

ding: an impression in a surface (as made by a blow)
mar: a mark or flaw that spoils the appearance of something (especially on a person's body)

Other hypernyms of ding include blemish, defect.

ding (noun)	mar (noun)
an impression in a surface (as made by a blow)	a mark or flaw that spoils the appearance of something (especially on a person's body)
a ringing sound

ding (verb)	mar (verb)
go `ding dong', like a bell	destroy or injure severely
	make imperfect