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