The definition of young is someone who has lived for a short time, or behaviors or things associated with someone who is not advanced in age.(adjective)
A girl who is only two years old is an example of someone who would be described as a young girl.
See young in Webster's New World College Dictionary
Origin: ME yonge < OE geong, akin to Ger & Du jung < IE *yuwen- > L juvenis, Sans yuvan-, young
See young in American Heritage Dictionary 4
adjective young·er, young·est
Origin: Middle English yong
Origin: , from Old English geong; see yeu- in Indo-European roots.
, Brigham 1801-1877.
, Denton True Known as “Cy.” 1867-1955.
, Edward 1683-1765.
, Lester Willis Known as “Pres.” 1909-1959.
, Thomas 1773-1829.
, Whitney Moore, Jr. 1921-1971.
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