雄牛[oushi] bull
牡牛座[oushiza] Taurus (constellation)
乾燥牛乳[kansougyuunyuu] powdered milk
牛脂[gyuushi] beef tallow
牛飼い[ushikai] cattleman

牛耳る[gyuujiru] to control
牛舎[gyuusha] cow shed
牛車[gyuusha] ox carriage (for Heian era nobles)
牛小屋[ushigoya] cow shed

牛蒡[gobou] great burdock (Arctium lappa)
叩き牛蒡[tatakigobou] burdock root seasoned with sesame
金平牛蒡[kinpiragobou] chopped burdock root (and sometimes carrot) cooked in sugar and soy sauce

菊牛蒡[kikugobou] scorzonera (Scorzonera hispanica)
洋種山牛蒡[youshuyamagobou] American pokeweed (Phytolacca americana)
牛蒡薊[gobouazami] Cirsium dipsacolepis (perennial plant of the thistle family)