'Younger' definitions:

Definition of 'younger'

(from WordNet)
adjective
Used of the younger of two persons of the same name especially used to distinguish a son from his father; "John Junior"; "John Smith, Jr." [syn: younger, jr.]

Definition of 'Younger'

From: GCIDE
  • 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.] [1913 Webster]
  • 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. [1913 Webster]
  • For he so young and tender was of age. --Chaucer. [1913 Webster]
  • "Whom the gods love, die young," has been too long carelessly said; . . . whom the gods love, live young forever. --Mrs. H. H. Jackson. [1913 Webster]
  • 2. Being in the first part, pr period, of growth; as, a young plant; a young tree. [1913 Webster]
  • While the fears of the people were young. --De Foe. [1913 Webster]
  • 3. Having little experience; inexperienced; unpracticed; ignorant; weak. [1913 Webster]
  • Come, come, elder brother, you are too young in this. --Shak. [1913 Webster]

Definition of 'Younger'

From: GCIDE
  • Younger \Young"er\, n. One who is younger; an inferior in age; a junior. "The elder shall serve the younger." --Rom. ix. 12. [1913 Webster]
  • 2. Used of the younger of two persons of the same name especially used to distinguish a son from his father; -- usually used postpositionally; as, Henry the younger.
  • Syn: jr. [WordNet 1.5]