Noun

• S: (n) door (a swinging or sliding barrier that will close the entrance to a room or building or vehicle) "he knocked on the door"; "he slammed the door as he left"
• S: (n) doorway, door, room access, threshold (the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close) "he stuck his head in the doorway"
• S: (n) door (anything providing a means of access (or escape)) "we closed the door to Haitian immigrants"; "education is the door to success"
• S: (n) door (a structure where people live or work (usually ordered along a street or road)) "the office next door"; "they live two doors up the street from us"
• S: (n) door (a room that is entered via a door) "his office is the third door down the hall on the left"