The Collaborative International Dictionary of English v.0.48:

Pleasure \Pleas"ure\, n. [F. plaisir, originally an infinitive.
   See Please.]
   1. The gratification of the senses or of the mind; agreeable
      sensations or emotions; the excitement, relish, or
      happiness produced by the expectation or the enjoyment of
      something good, delightful, or satisfying; -- opposed to
      pain, sorrow, etc.
      [1913 Webster]

            At thy right hand there are pleasures for evermore.
                                                  --Ps. xvi. 11.
      [1913 Webster]

   2. Amusement; sport; diversion; self-indulgence; frivolous or
      dissipating enjoyment; hence, sensual gratification; --
      opposed to labor, service, duty, self-denial, etc. "Not
      sunk in carnal pleasure." --Milton.
      [1913 Webster]

            He that loveth pleasure shall be a poor man. --Prov.
                                                  xxi. 17.
      [1913 Webster]

            Lovers of pleasures more than lovers of God. --2
                                                  Tim. iii. 4.
      [1913 Webster]

   3. What the will dictates or prefers as gratifying or
      satisfying; hence, will; choice; wish; purpose. "He will
      do his pleasure on Babylon." --Isa. xlviii. 14.
      [1913 Webster]

            Use your pleasure; if your love do not presuade you
            to come, let not my letter.           --Shak.
      [1913 Webster]

   4. That which pleases; a favor; a gratification. --Shak.
      [1913 Webster]

            Festus, willing to do the Jews a pleasure --Acts
                                                  xxv. 9.
      [1913 Webster]

   At pleasure, by arbitrary will or choice. --Dryden.

   To take pleasure in, to have enjoyment in. --Ps. cxlvii.
      11.
      [1913 Webster]

   Note: Pleasure is used adjectively, or in the formation of
         self-explaining compounds; as, pleasure boat, pleasure
         ground; pleasure house, etc.
         [1913 Webster]

   Syn: Enjoyment; gratification; satisfaction; comfort; solace;
        joy; gladness; delight; will; choice; preference;
        purpose; command; favor; kindness.
        [1913 Webster]