1. (noun)constitution, establishment, formation, organization, organisation the act of forming or establishing something "the constitution of a PTA group last year"; "it was the establishment of his reputation"; "he still remembers the organization of the club"
3. (noun)administration, governance, governing body, establishment, brass, organization, organisation the persons (or committees or departments etc.) who make up a body for the purpose of administering something "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"
6. (noun)establishment, ecesis (ecology) the process by which a plant or animal becomes established in a new habitat
7. (noun)establishment, validation the cognitive process of establishing a valid proof
Definitions of 'Establishment'
Webster 1913 Dictionary
1. (noun)Establishment the act of establishing; a ratifying or ordaining; settlement; confirmation
2. (noun)Establishment the state of being established, founded, and the like; fixed state
3. (noun)Establishment that which is established; as: (a) A form of government, civil or ecclesiastical; especially, a system of religion maintained by the civil power; as, the Episcopal establishment of England. (b) A permanent civil, military, or commercial, force or organization. (c) The place in which one is permanently fixed for residence or business; residence, including grounds, furniture, equipage, etc.; with which one is fitted out; also, any office or place of business, with its fixtures; that which serves for the carrying on of a business; as, to keep up a large establishment; a manufacturingestablishment
Definition of Establishment 
