n.

1. an organized structure for arranging or classifying;
   arrangement, organization, system
   
   • 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
2. the persons (or committees or departments etc.) who make up a body for the purpose of administering something;
   administration, governance, governing body, establishment, brass, organization
   
   • he claims that the present administration is corrupt
   • the governance of an association is responsible to its members
   • he quickly became recognized as a member of the establishment
3. a group of people who work together;
   organization
4. an ordered manner; orderliness by virtue of being methodical and well organized;
   organization, system
   
   • his compulsive organization was not an endearing quality
   • we can't do it unless we establish some system around here
5. the act of organizing a business or an activity related to a business;
   organization
   
   • he was brought in to supervise the organization of a new department
6. the activity or result of distributing or disposing persons or things properly or methodically;
   organization
   
   • his organization of the work force was very efficient
7. the act of forming something;
   constitution, establishment, formation, organization
   
   • the constitution of a PTA group last year
   • it was the establishment of his reputation
   • he still remembers the organization of the club