Source : Webster's Revised Unabridged Dictionary (1913)

Shower \Show"er\, v. t. [imp. & p. p. {Showered}; p. pr. & vb.
   n. {Showering}.]
   1. To water with a shower; to ??t copiously with rain.

            Lest it again dissolve and shower the earth.
                                                  --Milton.

   2. To bestow liberally; to destribute or scatter in ?undance;
      to rain. --Shak.

            C?sar's favor, That showers down greatness on his
            friends.                              --Addison.

Shower \Show"er\, v. i.
   To rain in showers; to fall, as in a hower or showers.
   --Shak.

Shower \Show"er\, n.
   1. One who shows or exhibits.

   2. That which shows; a mirror. [Obs.] --Wyclif.

Shower \Show"er\, n. [OE. shour, schour, AS. se?r; akin to D.
   schoer, G. schauer, OHG. sc?r, Icel. sk?r, Sw. skur, Goth.
   sk?ra windis a storm of wind; of uncertain origin.]
   1. A fall or rain or hail of short duration; sometimes, but
      rarely, a like fall of snow.

            In drought or else showers.           --Chaucer.

            Or wet the thirsty earth with falling showers.
                                                  --Milton.

   2. That which resembles a shower in falling or passing
      through the air copiously and rapidly.

            With showers of stones he drives them far away.
                                                  --Pope.

   3. A copious supply bestowed. [R.]

            He and myself Have travail'd in the great shower of
            your gifts.                           --Shak.

   {Shower bath}, a bath in which water is showered from above,
      and sometimes from the sides also.

Source : WordNet®

shower
     v 1: expend profusely; also used with abstract nouns; "He was
          showered with praise" [syn: {lavish}]
     2: spray or sprinkle with; "The guests showered rice on the
        couple"
     3: take a shower; wash one's body in the shower; "You should
        shower after vigorous exercise"
     4: rain abundantly; "Meteors showered down over half of
        Australia" [syn: {shower down}]
     5: provide abundantly with; "He showered her with presents"

shower
     n 1: a plumbing fixture that sprays water over you; "they
          installed a shower in the bathroom"
     2: washing yourself in a shower; you stand upright under water
        sprayed from a nozzle; "he took a shower after the game"
        [syn: {shower bath}]
     3: a brief period of precipitation; "the game was interrupted
        by a brief shower" [syn: {rain shower}]
     4: a sudden downpour (as of tears or sparks etc) likened to a
        rain shower; "a little shower of rose petals"; "a sudden
        cascade of sparks" [syn: {cascade}]
     5: someone who organizes an exhibit for others to see [syn: {exhibitor},
         {exhibitioner}]
     6: a party of friends assembled to present gifts (usually of a
        specified kind) to a person; "her friends organized a baby
        shower for her when she was expecting"