大秦 Traditional form: 大秦 Pinyin (reading): Dà Qín Definitions: Han Dynasty term for the Roman Empire 羅馬帝國/罗马帝国 ( Luómǎ Dìguó) Characters: 大 - big, great, vast, high, deep 秦 - the Qin dynasty (eponymous for China) Traditional characters: 大 - big, great, vast, high, deep 秦 - the Qin dynasty (eponymous for China)