INSTITUTION
Institution
An institution is any structure or mechanism of social order governing the behaviour of a set of individuals within a given community — may it be human or a specific animal one. Institutions are identified with a social purpose, transcending individuals and intentions by mediating the rules that govern living behavior.The above text is a snippet from Wikipedia: Institution
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institution
Noun
- An established organisation, especially one dedicated to education, public service, culture or the care of the destitute, poor etc.
 - The building which houses such an organisation.
 - A custom or practice of a society or community, marriage for example.
 - A person long established with a certain place or position.
 - The act of instituting.
 - That which institutes or instructs; a textbook or system of elements or rules.
- There is another manuscript, of above three hundred years old, being an institution of physic. — Evelyn.
 
 
The above text is a snippet from Wiktionary: institution
and as such is available under the Creative Commons Attribution/Share-Alike License.