splodge vs smudge

splodge and smudge both are nouns.

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

As nouns, smudge is a hypernym of splodge; that is, smudge is a word with a broader meaning than splodge:

Other hypernyms of splodge include blot, daub, slur, smear, smirch, spot.

splodge (noun)	smudge (noun)
an irregularly shaped spot	a blemish made by dirt
	a smoky fire to drive away insects

splodge (verb)	smudge (verb)
	make a smudge on; soil by smudging