1mas·ter·mind 
/ˈmæstɚˌmaɪnd, Brit ˈmɑ:stəˌmaɪnd/ noun
plural mas·ter·minds /ˈmæstɚˌmaɪnd, Brit ˈmɑ:stəˌmaɪnd/ noun [count] : a person who plans and organizes something
▪ He is considered (to be) the mastermind of the team's winning strategy. ▪ a criminal mastermind ▪ the mastermind behind the terrorist plot
▪ He is considered (to be) the mastermind of the team's winning strategy. ▪ a criminal mastermind ▪ the mastermind behind the terrorist plot
