1. (noun)institution, establishment an organization founded and united for a specific purpose
2. (noun)institution an establishment consisting of a building or complex of buildings where an organization for the promotion of some cause is situated
3. (noun)institution a custom that for a long time has been an important feature of some group or society
"the institution of marriage"; "the institution of slavery"; "he had become an institution in the theater"
4. (noun)initiation, founding, foundation, institution, origination, creation, innovation, introduction, instauration the act of starting something for the first time; introducing something new
"she looked forward to her initiation as an adult"; "the foundation of a new scientific society"
5. (noun)mental hospital, psychiatric hospital, mental institution, institution, mental home, insane asylum, asylum a hospital for mentally incompetent or unbalanced person
Definition of 'institution':
