smudge vs fingermark

smudge and fingermark both are nouns.

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

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

Other hyponyms of smudge include blotch, splodge, splotch, fingerprint, inkblot.

smudge (noun)	fingermark (noun)
a blemish made by dirt	a smudge made by a (dirty) finger
a smoky fire to drive away insects

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