洪渊 hóngyuān vast and profound Definitions Defs Origin Strokes Stroke Words Sentences Sents hóngyuān vast and profound 洪 hóng big (bound form) big; vast; great; powerful渊 淵 yuān deep profound; deep; vast in knowledgehóngyuān deep pool 洪 hóng big (bound form) big; vast; great; powerful渊 淵 yuān noun abyss deep pool; abyss; deep water