UNIONIZE Meaning of UNIONIZE in English unioniz|e BrE AmE ˈjuːn i‿ə naɪz AmE \ ˈjuːn jə naɪz▷ unioniz|ed d▷ unioniz|es ɪz əz ▷ unioniz|ing ɪŋ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012