building society• Ramzan is being sued for £30,000 by a building society.• His loan, from a building society, was for £50,000.• A building society is not concerned with public or localgovernment or the provision of a public service.• So ask your building society what you could lose or gain from a remortgage.
From Longman Business Dictionary
building societyˈbuilding soˌciety noun (plural building societies) [countableC]British EnglishBrEFINANCEORGANIZATIONS