SUPPLEMENTARY Meaning of SUPPLEMENTARY in English supplementar|y BrE AmE ˌsʌp lɪ ˈment‿ ə r |i ◂ ˌ•lə- AmE \ -ˈmen t̬ ə r |i -ˈmentr |i ▷ supplementar|ies iz▶ ˌ supple ˌ mentary ˈ benefit BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012