轰隆 hōnglōng [rumble] Origin Definitions Defs Strokes Stroke Words Sentences Sents 轰 轟 hōng noun boom (onomatopoeia) bang; rumble; the sound of a loud explosion or thunder隆 lōng adjective [onomatopoeia] (bound form) sound of drums or rumbling; used in words like 轰隆 hōnglōng and 咕隆 gūlōng