smirch vs blotch

smirch and blotch both are nouns.

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

As nouns, blotch is a hyponym of smirch; that is, blotch is a word with a more specific, narrower meaning than smirch:

Other hyponyms of smirch include splodge, splotch, fingermark, fingerprint, inkblot.

smirch (noun)	blotch (noun)
an act that brings discredit to the person who does it	an irregularly shaped spot
a blemish made by dirt

smirch (verb)	blotch (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	mark with spots or blotches of different color or shades of color as if stained
smear so as to make dirty or stained