SWELTER Meaning of SWELTER in English swelter BrE AmE ˈswelt ə AmE \ - ə r▷ swelter|ed d▷ sweltering/ly ˈswelt‿ ə r ɪŋ /li▷ swelter|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012