sprog vs small fry

sprog and small fry both are nouns.

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

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

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

sprog (noun)	small fry (noun)
a child	someone who is small and insignificant
a new military recruit	a young person of either sex