feeder vs scoffer

feeder and scoffer both are nouns.

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

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

feeder (noun)	scoffer (noun)
an animal being fattened or suitable for fattening	someone who jeers or mocks or treats something with contempt or calls out in derision
an animal that feeds on a particular source of food	someone who eats food rapidly and greedily
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