Definitions:

1. a custom that for a long time has been an important feature of some group or society noun
   • the institution of marriage

Synonyms:

• asylum
• establishment
• initiation
• insane asylum
• mental home
• mental hospital
• mental institution
• psychiatric hospital

NearBy Words:

• institutional
• institutionalise
• institutionalised
• institutionalize
• institutionalized
• institutionally