门 men n.entrance; door; gate 校门口 xiaomenkou(school gate) 开门 kaimen(open a door) 房门 fangmen(house door) 车门 chemen(car door) n.valve; switch 球门 qiumen(goal) 守门员 shoumenyuan) m.used for lessons or cannons 三门功课 sanmengongke(three courses) 一门大炮 yimendapao(one cannon)