kiddy vs tyke

kiddy and tyke both are nouns.

Word	Noun	Adjective	Verb	Adverb
kiddy	Yes	No	No	No
tyke	Yes	No	No	No

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

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

kiddy (noun)	tyke (noun)
informal term for a young child	a young person of either sex
	a crude uncouth ill-bred person lacking culture or refinement