Definitions of system:

• noun:   instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity

  Example: "He bought a new stereo system"

• noun:   the living body considered as made up of interdependent components forming a unified whole

  Example: "Exercise helped him get the alcohol out of his system"

• noun:   a group of physiologically or anatomically related organs or parts

  Example: "The body has a system of organs for digestion"

• noun:   a complex of methods or rules governing behavior

  Example: "They have to operate under a system they oppose"

• noun:   a procedure or process for obtaining an objective

  Example: "They had to devise a system that did not depend on cooperation"

• noun:   a group of independent but interrelated elements comprising a unified whole

  Example: "A vast system of production and distribution and consumption keep the country going"

• noun:   (physical chemistry) a sample of matter in which substances in different phases are in equilibrium

  Example: "In a static system oil cannot be replaced by water on a surface"

• noun:   an ordered manner; orderliness by virtue of being methodical and well organized

  Example: "We can't do it unless we establish some system around here"

• noun:   an organized structure for arranging or classifying

  Example: "He tried to understand their system of classification"