door

Etymology

From Middle English dore, dor, from Old English duru (“door”), dor (“gate”), from Proto-West Germanic *dur, from Proto-Germanic *durz, from Proto-Indo-European *dʰwṓr, from *dʰwer- (“doorway, door, gate”). Cognates Cognate with Scots door (“door”), Saterland Frisian Doore (“door”), West Frisian doar (“door”), Dutch deur (“door”), German Low German Door, Döör (“door”), German Tür (“door”), Tor (“gate”), Danish and Norwegian dør (“door”), Icelandic dyr (“door”), Latin foris and foras, Ancient Greek θύρα (thúra), Albanian derë pl. dyer, Central Kurdish دەرگە (derge), derî, Persian در (dar), Russian дверь (dverʹ), Hindi द्वार (dvār), Armenian դուռ (duṙ), Irish doras, Sanskrit द्वार (dvāra), Lithuanian durys.

noun

1. A portal of entry into a building, room, or vehicle, typically consisting of a rigid plane movable on a hinge. It may have a handle to help open and close, a latch to hold it closed, and a lock that ensures it cannot be opened without a key.
   ‘No. I only opened the door a foot and put my head in. The street lamps shine into that room. I could see him. He was all right. Sleeping like a great grampus. Poor, poor chap.’ 1963, Margery Allingham, chapter 20, in The China Governess
   I knocked on the vice president's door
2. Any flap, etc. that opens like a door.
   the 24 doors in an Advent calendar
3. (immigration) An entry point.
4. (figurative) A means of approach or access.
   Learning is the door to wisdom.
5. (figurative) A possibility.
   to leave the door open
   all doors are open to somebody
6. (figurative) A barrier.
   Keep a door on your anger.
7. (computing, dated) A software mechanism by which a user can interact with a program running remotely on a bulletin board system. See BBS door.
8. The proceeds from entrance fees and/or ticket sales at a venue such as a bar or nightclub, especially in relation to portion paid to the entertainers.
   The bar owner gives each band a percentage of the door and charges customers more to get in.

verb

1. (transitive, cycling) To cause a collision by opening the door of a vehicle in front of an oncoming cyclist or pedestrian.
   Kerr has acted for numerous clients who have been doored, including one man knocked off his bike and on to spiked railings, and another who ended up hitting a tree. 2018-02-06, Helen Pidd, “I got ‘doored’ while undertaking on my bike. Was it my fault?”, in The Guardian