splotch vs smear

splotch and smear both are nouns.

Word	Noun	Adjective	Verb	Adverb
splotch	Yes	No	Yes	No
smear	Yes	No	Yes	No

As nouns, smear is a hypernym of splotch; that is, smear is a word with a broader meaning than splotch:

Other hypernyms of splotch include blot, daub, slur, smirch, smudge, spot.

splotch (noun)	smear (noun)
an irregularly shaped spot	an act that brings discredit to the person who does it
	a blemish made by dirt
	a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
	slanderous defamation

splotch (verb)	smear (verb)
blotch or spot	charge falsely or with malicious intent; attack the good name and reputation of someone
	make a smudge on; soil by smudging
	stain by smearing or daubing with a dirty substance
	cover (a surface) by smearing (a substance) over it