street child vs fry

street child and fry both are nouns.

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

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

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

street child (noun)	fry (noun)
a homeless child especially one forsaken or orphaned	a young person of either sex

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