<p><strong>Adjective</strong></p><ul><li>being in the first or early stage of life or growth; youthful; not old.</li><li>having the appearance, freshness, vigor, or other qualities of youth.</li><li>of or relating to youth: in one's young days.</li><li>inexperienced or immature.</li><li>not far advanced in years in comparison with another or others.</li><li>junior, as applied to the younger of two persons having the same name: the young Mr. Smith.</li><li>being in an early stage generally, as of existence, progress, operation, development, or maturity; new; early: a young wine; It is a young company, not yet firmly established.</li><li>representing or advocating recent or progressive tendencies, policies, or the like.</li></ul><p><strong>Noun</strong></p><ul><li>those who have youth; young persons collectively: the educated young of today; a game for young and old.</li><li>young offspring: a mother hen protecting her young.</li></ul>