Read Edit View history 何以 héyǐ why Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 何以 héyǐ why adverb · for what reason; why 既然事实如此，你何以不信？ Edit Delete 何以 héyǐ how adverb · by what means; in what way 你何以证明这张钞票不是伪造的？ Edit Delete References Add reference No references for this word.