wonder child vs tyke

wonder child and tyke both are nouns.

Word	Noun	Adjective	Verb	Adverb
wonder child	Yes	No	No	No
tyke	Yes	No	No	No

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

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

wonder child (noun)	tyke (noun)
a prodigy whose talents are recognized at an early age	a young person of either sex
	a crude uncouth ill-bred person lacking culture or refinement