From WordNet (r) 1.6 [wn]:

  system
       n 1: a group of independent but interrelated elements comprising
            a unified whole; "a vast system of production and
            distribution and consumption keep the country going"
       2: a combination of interrelated interacting artifacts designed
          to work as a coherent entity; "he bought a new stereo
          system"; "the unit consists of a motor and a small
          computer" [syn: {unit}]
       3: a complex of methods or rules governing behavior; "they have
          to operate under a system they oppose"; "that language has
          a complex system for indicating gender" [syn: {system of
          rules}]
       4: a procedure or process for obtaining an objective; "they had
          to devise a system that did not depend on cooperation"
       5: a group of physiologically or anatomically related organs or
          parts; "the body has a system of organs for digestion"
       6: an organized structure for arranging or classifying; "he
          changed the arrangement of the topics"; "the facts were
          familiar but it was in the organization of them that he
          was original"; "he tried to understand their system of
          classification" [syn: {arrangement}, {organization}, {organisation}]
       7: (physical chemistry) a sample of matter in which substances
          in different phases are in equilibrium; "in a static
          system oil cannot be replaced by water on a surface"; "a
          system generating hydrogen peroxide"
       8: the living body considered as made up of interdependent
          components forming a unified whole; "exercise helped him
          get the alcohol out of his system"
       9: an ordered manner; orderliness by virtue of being methodical
          and well organized; "his compulsive organization was not
          an endearing quality"; "we can't do it unless we establish
          some system around here" [syn: {organization}, {organisation}]