Source : Webster's Revised Unabridged Dictionary (1913)

Pour \Pour\, n.
   A stream, or something like a stream; a flood. [Colloq.] ``A
   pour of rain.'' --Miss Ferrier.

Pour \Pour\, a.
   Poor. [Obs.] --Chaucer.

Pour \Pour\, v. t. [imp. & p. p. {Poured}; p. pr. & vb. n.
   {Pouring}.] [OE. pouren, of uncertain origin; cf. W. bwrw to
   cast, throw, shed, bwrw gwlaw to rain.]
   1. To cause to flow in a stream, as a liquid or anything
      flowing like a liquid, either out of a vessel or into it;
      as, to pour water from a pail; to pour wine into a
      decanter; to pour oil upon the waters; to pour out sand or
      dust.

   2. To send forth as in a stream or a flood; to emit; to let
      escape freely or wholly.

            I . . . have poured out my soul before the Lord. --1
                                                  Sam. i. 15.

            Now will I shortly pour out my fury upon thee.
                                                  --Ezek. vii.
                                                  8.

            London doth pour out her citizens !   --Shak.

            Wherefore did Nature pour her bounties forth With
            such a full and unwithdrawing hand ?  --Milton.

   3. To send forth from, as in a stream; to discharge
      uninterruptedly.

            Is it for thee the linnet pours his throat ? --Pope.

Pour \Pour\, v. i.
   To pore. [Obs.] --Chaucer.

Pour \Pour\, v. i.
   To flow, pass, or issue in a stream, or as a stream; to fall
   continuously and abundantly; as, the rain pours; the people
   poured out of the theater.

         In the rude throng pour on with furious pace. --Gay.

Source : WordNet®

pour
     v 1: cause to run; "pour water over the floor"
     2: move in large numbers; "people were pouring out of the
        theater"; "beggars pullulated in the plaza" [syn: {swarm},
         {stream}, {teem}, {pullulate}]
     3: pour out; "the sommelier decanted the wines" [syn: {decant},
         {pour out}]
     4: flow in a spurt; "Water poured all over the floor"
     5: supply in large amounts or quantities; "We poured money into
        the education of our children"
     6: rain heavily; "Put on your rain coat-- it's pouring
        outside!" [syn: {pelt}, {stream}, {rain cats and dogs}, {rain
        buckets}]