The Collaborative International Dictionary of English v.0.48:

Art \Art\ ([aum]rt), n. [F. art, L. ars, artis, orig., skill in
   joining or fitting; prob. akin to E. arm, aristocrat,
   article.]
   1. The employment of means to accomplish some desired end;
      the adaptation of things in the natural world to the uses
      of life; the application of knowledge or power to
      practical purposes.
      [1913 Webster]

            Blest with each grace of nature and of art. --Pope.
      [1913 Webster]

   2. A system of rules serving to facilitate the performance of
      certain actions; a system of principles and rules for
      attaining a desired end; method of doing well some special
      work; -- often contradistinguished from science or
      speculative principles; as, the art of building or
      engraving; the art of war; the art of navigation.
      [1913 Webster]

            Science is systematized knowledge . . . Art is
            knowledge made efficient by skill.    --J. F.
                                                  Genung.
      [1913 Webster]

   3. The systematic application of knowledge or skill in
      effecting a desired result. Also, an occupation or
      business requiring such knowledge or skill.
      [1913 Webster]

            The fishermen can't employ their art with so much
            success in so troubled a sea.         --Addison.
      [1913 Webster]

   4. The application of skill to the production of the
      beautiful by imitation or design, or an occupation in
      which skill is so employed, as in painting and sculpture;
      one of the fine arts; as, he prefers art to literature.
      [1913 Webster]

   5. pl. Those branches of learning which are taught in the
      academical course of colleges; as, master of arts.
      [1913 Webster]

            In fearless youth we tempt the heights of arts.
                                                  --Pope.
      [1913 Webster]

            Four years spent in the arts (as they are called in
            colleges) is, perhaps, laying too laborious a
            foundation.                           --Goldsmith.
      [1913 Webster]

   6. Learning; study; applied knowledge, science, or letters.
      [Archaic]
      [1913 Webster]

            So vast is art, so narrow human wit.  --Pope.
      [1913 Webster]

   7. Skill, dexterity, or the power of performing certain
      actions, acquired by experience, study, or observation;
      knack; as, a man has the art of managing his business to
      advantage.
      [1913 Webster]

   8. Skillful plan; device.
      [1913 Webster]

            They employed every art to soothe . . . the
            discontented warriors.                --Macaulay.
      [1913 Webster]

   9. Cunning; artifice; craft.
      [1913 Webster]

            Madam, I swear I use no art at all.   --Shak.
      [1913 Webster]

            Animals practice art when opposed to their superiors
            in strength.                          --Crabb.
      [1913 Webster]

   10. The black art; magic. [Obs.] --Shak.
       [1913 Webster]

   Art and part (Scots Law), share or concern by aiding and
      abetting a criminal in the perpetration of a crime,
      whether by advice or by assistance in the execution;
      complicity.
      [1913 Webster]

   Note: The arts are divided into various classes.

   The useful arts,

   The mechanical arts, or

   The industrial arts are those in which the hands and body
      are more concerned than the mind; as in making clothes and
      utensils. These are called trades.

   The fine arts are those which have primarily to do with
      imagination and taste, and are applied to the production
      of what is beautiful. They include poetry, music,
      painting, engraving, sculpture, and architecture; but the
      term is often confined to painting, sculpture, and
      architecture.

   The liberal arts (artes liberales, the higher arts, which,
      among the Romans, only freemen were permitted to pursue)
      were, in the Middle Ages, these seven branches of
      learning, -- grammar, logic, rhetoric, arithmetic,
      geometry, music, and astronomy. In modern times the
      liberal arts include the sciences, philosophy, history,
      etc., which compose the course of academical or collegiate
      education. Hence, degrees in the arts; master and bachelor
      of arts.
      [1913 Webster]

            In America, literature and the elegant arts must
            grow up side by side with the coarser plants of
            daily necessity.                      --Irving.
      [1913 Webster]

   Syn: Science; literature; aptitude; readiness; skill;
        dexterity; adroitness; contrivance; profession;
        business; trade; calling; cunning; artifice; duplicity.
        See Science.
        [1913 Webster]