institution
/ˌɪnstəˈtuːʃən/ /Brit ˌɪnstəˈtjuːʃən/
noun
plural -tions
[count] an established organization
a place where an organization takes care of people for a usually long period of time
[count] a custom, practice, or law that is accepted and used by many people
someone or something that is very well known and established in a particular field or place
[noncount] :the act of beginning or creating something (such as a new law, rule, or system) :the act of instituting something