door Meaning, Definition & Usage

  1. noun 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
  2. noun the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
    threshold; room access; doorway.
    • he stuck his head in the doorway
  3. noun anything providing a means of access (or escape)
    • we closed the door to Haitian immigrants
    • education is the door to success
  4. noun 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
  5. noun a room that is entered via a door
    • his office is the third door down the hall on the left

WordNet

Door noun
Etymology
OE. dore, dure, AS. duru; akin to OS. dura, dor, D. deur, OHG. turi, door, tor gate, G. thür, thor, Icel. dyrr, Dan. dör, Sw. dörr, Goth. daur, Lith. durys, Russ. dvere, Olr. dorus, L. fores, Gr. cf. Skr. dur, dvara. . Cf. Foreign.
Definitions
  1. An opening in the wall of a house or of an apartment, by which to go in and out; an entrance way.
    To the same end, men several paths may tread, As many doors into one temple lead. Denham.
  2. The frame or barrier of boards, or other material, usually turning on hinges, by which an entrance way into a house or apartment is closed and opened.
    At last he came unto an iron door That fast was locked. Spenser.
  3. Passage; means of approach or access.
    I am the door; by me if any man enter in, he shall be saved. John x. 9.
  4. An entrance way, but taken in the sense of the house or apartment to which it leads.
    Martin's office is now the second door in the street. Arbuthnot.
    ✍ Door is used in an adjectival construction or as the first part of a compound (with or without the hyphen), as, door frame, doorbell or door bell, door knob or doorknob, door latch or doorlatch, door jamb, door handle, door mat, door panel.

Webster 1913