mar vs smudge

mar and smudge both are nouns.

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

As nouns, smudge is a hyponym of mar; that is, smudge 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)
smudge: a blemish made by dirt

mar (noun)	smudge (noun)
a mark or flaw that spoils the appearance of something (especially on a person's body)	a blemish made by dirt
	a smoky fire to drive away insects

mar (verb)	smudge (verb)
destroy or injure severely	make a smudge on; soil by smudging
make imperfect