smirch vs smudge

smirch and smudge both are nouns.

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

As nouns, smirch and smudge are synonyms defined as:

Other synonyms of smirch include blot, daub, slur, smear, spot.

smirch (noun)	smudge (noun)
an act that brings discredit to the person who does it	a blemish made by dirt
a blemish made by dirt	a smoky fire to drive away insects

smirch (verb)	smudge (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	make a smudge on; soil by smudging
smear so as to make dirty or stained