n a swinging or sliding barrier that will close the entrance to a room or building or vehicle
n the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
n anything providing a means of access (or escape)
n a structure where people live or work (usually ordered along a street or road)
n a room that is entered via a door
n. 大门；入口；通道（door的复数）