MASTERMIND Meaning of MASTERMIND in English mastermind noun, verb BrE AmE ˈmɑːst ə maɪnd § ˈmæst-, ˌ••ˈ• AmE ˈmæst ə r-▷ mastermind|ed ɪd əd ▷ mastermind|ing ɪŋ▷ mastermind|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012