Noun

(wikipedia institution) (en 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.

(informal) A person long established with a certain place or position.

The act of instituting.

(obsolete) 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.

Noun

(en noun)

The act of establishing; a ratifying or ordaining; settlement; confirmation.

The state of being established, founded, etc.; fixed state.

That which is established; as a form of government, a permanent organization, business or force, or the place where one is permanently fixed for residence.

(slang) The establishment : the ruling class or authority group in a society; especially, an entrenched authority dedicated to preserving the status quo. Sometimes capitalized: the Establishment.

*{{quote-magazine, date=2013-06-28, author=(Joris Luyendijk)

, volume=189, issue=3, page=21, magazine=(The Guardian Weekly) , title= Our banks are out of control , passage=Seeing the British establishment struggle with the financial sector is like watching an alcoholic who still resists the idea that something drastic needs to happen for him to turn his life around. Until 2008 there was denial over what finance had become. When a series of bank failures made this impossible, there was widespread anger, leading to the public humiliation of symbolic figures.}}