foster child vs fry

foster child and fry both are nouns.

Word	Noun	Adjective	Verb	Adverb
foster child	Yes	No	No	No
fry	Yes	No	Yes	No

As nouns, fry is a hypernym of foster child; that is, fry is a word with a broader meaning than foster child:

Other hypernyms of foster child include child, kid, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke, youngster.

foster child (noun)	fry (noun)
a child who is raised by foster parents	a young person of either sex

foster child (verb)	fry (verb)
	cook in hot fat or oil
	kill by electrocution, as in the electric chair
	be excessively hot