fair game vs prey

fair game and prey both are nouns.

Word	Noun	Adjective	Verb	Adverb
fair game	Yes	No	No	No
prey	Yes	No	Yes	No

As nouns, fair game and prey are synonyms defined as:

fair game and prey: a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence

Other synonyms of fair game include quarry, target.

fair game (noun)	prey (noun)
a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence	animal hunted or caught for food
	a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence

fair game (verb)	prey (verb)
	profit from in an exploitatory manner
	prey on or hunt for