mar vs smirch

mar and smirch both are nouns.

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

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

mar (noun)	smirch (noun)
a mark or flaw that spoils the appearance of something (especially on a person's body)	an act that brings discredit to the person who does it
	a blemish made by dirt

mar (verb)	smirch (verb)
destroy or injure severely	charge falsely or with malicious intent; attack the good name and reputation of someone
make imperfect	smear so as to make dirty or stained