Definitions of organization:

• noun:   the activity or result of distributing or disposing persons or things properly or methodically

  Example: "His organization of the work force was very efficient"

• noun:   the act of organizing a business or business-related activity

  Example: "He was brought in to supervise the organization of a new department"

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

  Example: "His compulsive organization was not an endearing quality"

• noun:   a group of people who work together
• noun:   an organized structure for arranging or classifying

  Example: "The facts were familiar but it was in the organization of them that he was original"

• noun:   the act of forming something

  Example: "He still remembers the organization of the club"

• noun:   the persons (or committees or departments etc.) who make up a body for the purpose of administering something