smudge vs daub

smudge and daub both are nouns.

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

As nouns, smudge and daub are synonyms defined as:

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

smudge (noun)	daub (noun)
a blemish made by dirt	an unskillful painting
a smoky fire to drive away insects	a blemish made by dirt
	material used to daub walls

smudge (verb)	daub (verb)
make a smudge on; soil by smudging	cover (a surface) by smearing (a substance) over it
	coat with plaster
	apply to a surface