d(a)ɪˈɹɛkt ˌɛnd͡ʒɪˈnɪɹ ˌɛnd͡ʒɪˈnɪə ˌɛnd͡ʒɪˈnɪɹ ˌɛnd͡ʒɪˈnɪə ˈmɑː.stə.mʌɪnd ˈmæs.tɚˌmaɪnd ˈɔː(ɹ).kə.stɹeɪt ˈɔɹ.kəstˌɹeɪt ˈɔɹɡənaɪz ˈɔːɡənaɪz tɛkˈnɒləd͡ʒɪst tɛkˈnɑləd͡ʒɪst plan and direct (a complex undertaking) he masterminded the robbery design as an engineer He engineered the water supply project a person who uses scientific knowledge to solve practical problems the operator of a railway locomotive