号筒 Traditional form: 號筒 Pinyin (reading): hàotǒng Definitions: bugle Characters: 号 - mark, sign; symbol; number; to call, to cry, to roar 筒 - tube, pipe, cylinder; a thick piece of bamboo Traditional characters: 號 - mark, sign; symbol; number; to call, to cry, to roar 筒 - tube, pipe, cylinder; a thick piece of bamboo