斗牛 Traditional form: 斗牛 Pinyin (reading): Dǒu Niú Definitions: Big Dipper and Altair (astronomy) Characters: 斗 - to struggle, to fight, to contend; measuring cup 牛 - ox, cow, bull Traditional characters: 斗 - to struggle, to fight, to contend; measuring cup 牛 - ox, cow, bull