FLUID Meaning of FLUID in English fluid BrE AmE ˈflu ː ‿ɪd▷ fluid|ly li▷ fluid|ness nəs nɪs ▷ fluid|s z▶ ˌ fluid ˈ ounce BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012