From Longman Dictionary of Contemporary EnglishRelated topics: Furnituretwin bedˌtwin ˈbed noun [countable]1[usually plural]DHF one of a pair of single beds in a room for two people2American EnglishDHF a bed that is just big enough for one person → double bed —twin-bedded adjective British Englishtwin-bedded roomsExamples from the Corpustwin bed• Twenty heatedminutes later he collapsed on to his twin bed, and turned on the telly.