OMNISCIENCE Meaning of OMNISCIENCE in English omniscience BrE AmE ɒm ˈnɪs i‿ən t s -ˈnɪʃ-, -ˈnɪʃ ə n t s AmE \ ɑːm ˈnɪʃ ə n t s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012