MUSS Meaning of MUSS in English muss BrE AmE mʌs▷ mussed mʌst (= must)▷ musses ˈmʌs ɪz -əz ▷ mussing ˈmʌs ɪŋ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012