Source : Webster's Revised Unabridged Dictionary (1913)

Urge \Urge\, v. t. [imp. & p. p. {Urged}; p. pr. & vb. n.
   {Urging}.] [L. urgere; akin to E. wreak. See {Wreak}, v. t.]
   1. To press; to push; to drive; to impel; to force onward.

            Through the thick deserts headlong urged his flight.
                                                  --Pope.

   2. To press the mind or will of; to ply with motives,
      arguments, persuasion, or importunity.

            My brother never Did urge me in his act; I did
            inquire it.                           --Shak.

   3. To provoke; to exasperate. [R.]

            Urge not my father's anger.           --Shak.

   4. To press hard upon; to follow closely

            Heir urges heir, like wave impelling wave. --Pope.

   5. To present in an urgent manner; to press upon attention;
      to insist upon; as, to urge an argument; to urge the
      necessity of a case.

   6. To treat with forcible means; to take severe or violent
      measures with; as, to urge an ore with intense heat.

   Syn: To animate; incite; impel; instigate; stimulate;
        encourage.

Urge \Urge\, v. i.
   1. To press onward or forward. [R.]

   2. To be pressing in argument; to insist; to persist.

Source : WordNet®

urge
     v 1: force or impel in an indicated direction; "I urged him to
          finish his studies" [syn: {urge on}, {press}, {exhort}]
     2: push for something; "The travel agent recommended strongly
        that we not travel on Thanksgiving Day" [syn: {recommend},
         {advocate}]
     3: urge on or encourage especially by shouts; "The crowd
        cheered the demonstrating strikers" [syn: {cheer}, {inspire},
         {barrack}, {urge on}, {exhort}, {pep up}]

urge
     n 1: an instinctive motive; "profound religious impulses" [syn: {impulse}]
     2: a strong restless desire; "why this urge to travel?" [syn: {itch}]