Source : Webster's Revised Unabridged Dictionary (1913)

Young \Young\ (y[u^]ng), a. [Compar. {Younger}
   (y[u^][ng]"g[~e]r); superl. {Youngest} (-g[e^]st).] [OE.
   yung, yong, [yogh]ong, [yogh]ung, AS. geong; akin to OFries.
   iung, iong, D. joing, OS., OHG., & G. jung, Icel. ungr, Sw. &
   Dan. ung, Goth. juggs, Lith. jaunas, Russ. iunuii, L.
   juvencus, juvenis, Skr. juva[,c]a, juvan. [root]281. Cf.
   {Junior}, {Juniper}, {Juvenile}, {Younker}, {Youth}.]
   1. Not long born; still in the first part of life; not yet
      arrived at adolescence, maturity, or age; not old;
      juvenile; -- said of animals; as, a young child; a young
      man; a young fawn.

            For he so young and tender was of age. --Chaucer.

            ``Whom the gods love, die young,'' has been too long
            carelessly said; . . . whom the gods love, live
            young forever.                        --Mrs. H. H.
                                                  Jackson.

   2. Being in the first part, pr period, of growth; as, a young
      plant; a young tree.

            While the fears of the people were young. --De Foe.

   3. Having little experience; inexperienced; unpracticed;
      ignorant; weak.

            Come, come, elder brother, you are too young in
            this.                                 --Shak.

Source : WordNet®

young
     n 1: any immature animal [syn: {offspring}]
     2: United States film and television actress (1913-2000) [syn:
        {Loretta Young}]
     3: United States civil rights leader (1921-1971) [syn: {Whitney
        Young}, {Whitney Moore Young Jr.}]
     4: British physicist and Egyptologist; he revived the wave
        theory of light and proposed a three-component theory of
        color vision; he also played an important role in
        deciphering the hieroglyphics on the Rosetta Stone
        (1773-1829) [syn: {Thomas Young}]
     5: United States jazz tenor saxophonist (1909-1959) [syn: {Pres
        Young}, {Lester Willis Young}]
     6: English poet (1683-1765) [syn: {Edward Young}]
     7: United States baseball player and famous pitcher (1867-1955)
        [syn: {Cy Young}, {Danton True Young}]
     8: United States religious leader of the Mormon Church after
        the assassination of Joseph Smith; he led the Mormon
        exodus from Illinois to Salt Lake City, Utah (1801-1877)
        [syn: {Brigham Young}]
     9: young people collectively; "rock music appeals to the
        young"; "youth everywhere rises in revolt" [syn: {youth}]
        [ant: {aged}]
     [also: {youngest}, {younger}]

young
     adj 1: (used of living things especially persons) in an early
            period of life or development or growth; "young
            people" [syn: {immature}] [ant: {old}]
     2: (of crops) harvested at an early stage of development;
        before complete maturity; "new potatoes"; "young corn"
        [syn: {new}]
     [also: {youngest}, {younger}]

youngest
     See {young}