PREFIX Meaning of PREFIX in English I prefix noun BrE AmE ˈpriː fɪks▷ prefix|es ɪz əzII prefix verb BrE AmE ˈpriː fɪks ( ˌ ) priː ˈfɪks ▷ prefix|ed t▷ prefix|es ɪz əz ▷ prefix|ing ɪŋ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012