noun, often attributive \ˈdr\

: a movable piece of wood, glass, or metal that swings or slides open and shut so that people can enter or leave a room, building, vehicle, etc.

: a part of an object (such as piece of furniture or an appliance) that swings or slides open and shut

: the opening for a door : the entrance to a room or building

Full Definition of DOOR

:  a usually swinging or sliding barrier by which an entry is closed and opened; also :  a similar part of a piece of furniture
:  doorway
:  a means of access or participation :  opportunity <opens new doors> <door to success>
door·less \-ləs\ adjective
at one's door
:  as a charge against one as being responsible <laid the blame at our door>

Examples of DOOR

  1. I heard a knock on the door.
  2. Please don't block the door.
  3. I peeked through the open door.
  4. He stood at the door.

Origin of DOOR

Middle English dure, dor, from Old English duru door & dor gate; akin to Old High German turi door, Latin fores, Greek thyra
First Known Use: before 12th century

Other Architecture Terms

buttress, casita, cornice, fanlight, garret, lintel, parapet, pilaster, plinth


noun    (Concise Encyclopedia)

Movable barrier installed in the entry of a room or building to restrict access or provide visual privacy. Early doors were hides or textiles. With monumental architecture came pivoting doors of rigid, permanent materials; important chambers often had stone or bronze doors. Pompeiian doors looked much like modern wooden doors; they were constructed of stiles (vertical planks) and rails (horizontal planks) fastened together to support panels and occasionally equipped with locks and hinges. The typical Western medieval door was of vertical planks backed with horizontal or diagonal bracing. In the 20th century, a single, hollow-core panel door became most common. Other types include the revolving door, folding door, sliding door (inspired by the Japanese shoji), rolling door, and Dutch door (divided horizontally so that the lower or upper part can be opened separately).


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