snacker vs feeder

snacker and feeder both are nouns.

Word	Noun	Adjective	Verb	Adverb
snacker	Yes	No	No	No
feeder	Yes	No	No	No

As nouns, feeder is a hypernym of snacker; that is, feeder is a word with a broader meaning than snacker:

Other hypernyms of snacker include eater.

snacker (noun)	feeder (noun)
someone who eats lightly or eats snacks between meals	an animal being fattened or suitable for fattening
	an animal that feeds on a particular source of food
	a machine that automatically provides a supply of some material
	an outdoor device that supplies food for wild birds
	a branch that flows into the main stream
	someone who consumes food for nourishment