garner vs oyster

garner and oyster both are nouns.

Word	Noun	Adjective	Verb	Adverb
garner	Yes	No	Yes	No
oyster	Yes	No	Yes	No

As verbs, oyster is a hyponym of garner; that is, oyster is a word with a more specific, narrower meaning than garner:

garner (noun)	oyster (noun)
a storehouse for threshed grain or animal feed	marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
	edible body of any of numerous oysters
	a small muscle on each side of the back of a fowl

garner (verb)	oyster (verb)
assemble or get together	gather oysters, dig oysters
store grain
acquire or deserve by one's efforts or actions