small fry vs fry

small fry and fry both are nouns.

Word	Noun	Adjective	Verb	Adverb
small fry	Yes	No	No	No
fry	Yes	No	Yes	No

As nouns, small fry and fry are synonyms defined as:

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

small fry (noun)	fry (noun)
someone who is small and insignificant	a young person of either sex
a young person of either sex

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