establishment in WordNet English dictionary

1. 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"
   administration  governance  governing body  establishment  brass  organization  organisation 
   
2. 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"
   constitution  establishment  formation  organization  organisation 
   
3. (ecology) the process by which a plant or animal becomes established in a new habitat
   establishment  ecesis 
   
4. a public or private structure (business or governmental or educational) including buildings and equipment for business or residence
   establishment 
   
5. the cognitive process of establishing a valid proof
   establishment  validation 
   
6. an organization founded and united for a specific purpose
   institution  establishment 
   
7. any large organization
   establishment