-DECKER Meaning of -DECKER in English -decker BrE AmE ˈdek ə AmE - ə r▷ — single-decker ˌsɪŋ ɡ ə l ˈdek ə ◂ AmE - ə r Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012