PIONEER Meaning of PIONEER in English pioneer, P~ BrE AmE ˌpa ɪ ‿ə ˈnɪə ◂ AmE -ˈnɪ ə r▷ pioneer|ed d▷ pioneering ˌpa ɪ ‿ə ˈnɪər ɪŋ ◂ AmE \ -ˈnɪr ɪŋ ◂▷ pioneer|s z▶ ˌ pio ˌ neering ˈ work BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012