AMASS Meaning of AMASS in English amass BrE AmE ə ˈmæs▷ amassed ə ˈmæst▷ amasses ə ˈmæs ɪz -əz ▷ amassing ə ˈmæs ɪŋ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012