tike vs youngster

tike and youngster both are nouns.

Word	Noun	Adjective	Verb	Adverb
tike	Yes	No	No	No
youngster	Yes	No	No	No

As nouns, tike and youngster are synonyms defined as:

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

tike (noun)	youngster (noun)
a young person of either sex	a young person of either sex
a crude uncouth ill-bred person lacking culture or refinement