non·bank I. \(ˈ) ̷ ̷+\adjective Etymology:non- (I) + bank, n. : being or done by someone other than a bank : not being or done by a bank < nonbank borrowing > < nonbank lenders > < nonbank investors > II. \ˈ ̷ ̷ ˈ ̷ ̷ \noun : a business that is not an officially established bank but offers many similar services