Source : Webster's Revised Unabridged Dictionary (1913)

Douse \Douse\, v. i.
   To fall suddenly into water. --Hudibras.

Douse \Douse\, v. t. [AS. dw[ae]scan. (Skeat.)]
   To put out; to extinguish. [Slang] `` To douse the glim.''
   --Sir W. Scott.

Douse \Douse\, v. t. [imp. & p. p. {Doused}; p. pr. & vb. n.
   {Dousing}.] [Cf. {Dowse}, and OD. donsen to strike with the
   fist on the back, Sw. dunsa to fall down violently and
   noisily; perh. akin to E. din.]
   1. To plunge suddenly into water; to duck; to immerse; to
      dowse. --Bp. Stillingfleet.

   2. (Naut.) To strike or lower in haste; to slacken suddenly;
      as, douse the topsail.

Source : WordNet®

douse
     v 1: put out, as of a candle or a light; "Douse the lights" [syn:
           {put out}]
     2: wet thoroughly [syn: {dowse}]
     3: dip into a liquid; "He dipped into the pool" [syn: {dip}, {duck}]
     4: immerse briefly into a liquid so as to wet, coat, or
        saturate; "dip the garment into the cleaning solution";
        "dip the brush into the paint" [syn: {dunk}, {dip}, {souse},
         {plunge}]
     5: lower quickly; "douse a sail"
     6: slacken; "douse a rope" [syn: {dowse}]
     7: cover with liquid; pour liquid onto; "souse water on his hot
        face" [syn: {drench}, {dowse}, {soak}, {sop}, {souse}]