mar vs nick

mar and nick both are nouns.

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

As nouns, nick is a hyponym of mar; that is, nick 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)
nick: an impression in a surface (as made by a blow)

mar (noun)	nick (noun)
a mark or flaw that spoils the appearance of something (especially on a person's body)	a small cut
	(British slang) a prison
	an impression in a surface (as made by a blow)

mar (verb)	nick (verb)
destroy or injure severely	mate successfully; of livestock
make imperfect	divide or reset the tail muscles of
	cut a nick into
	cut slightly, with a razor