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door

[dawr, dohr]
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noun
  1. a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
  2. a doorway: to go through the door.
  3. the building, house, etc., to which a door belongs: My friend lives two doors down the street.
  4. any means of approach, admittance, or access: the doors to learning.
  5. any gateway marking an entrance or exit from one place or state to another: at heaven's door.
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Idioms
  1. lay at someone's door, to hold someone accountable for; blame; impute.
  2. leave the door open, to allow the possibility of accommodation or change; be open to reconsideration: The boss rejected our idea but left the door open for discussing it again next year.
  3. lie at someone's door, to be the responsibility of; be imputable to: One's mistakes often lie at one's own door.
  4. show someone the door, to request or order someone to leave; dismiss: She resented his remark and showed him the door.
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Origin of door

before 900; Middle English dore, Old English duru door, dor gate; akin to German Tür, Old Norse dyrr, Greek thýra, Latin foris, Old Irish dorus, OCS dvĭrĭ
Related formsdoor·less, adjectivehalf-door, adjective, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for leave the door open

door

noun
    1. a hinged or sliding panel for closing the entrance to a room, cupboard, etc
    2. (in combination)doorbell; doorknob
  1. a doorway or entrance to a room or building
  2. a means of access or escapea door to success
  3. early doors British informal esp sport at an early stage
  4. lay at someone's door to lay (the blame or responsibility) on someone
  5. out of doors in or into the open air
  6. show someone the door to order someone to leave
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See also next door

Word Origin

Old English duru; related to Old Frisian dure, Old Norse dyrr, Old High German turi, Latin forēs, Greek thura
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for leave the door open

door

n.

Middle English merger of Old English dor (neuter; plural doru) "large door, gate," and Old English duru (fem., plural dura) "door, gate, wicket;" both from Proto-Germanic *dur- (cf. Old Saxon duru, Old Norse dyrr, Danish dør, Old Frisian dure, Old High German turi, German Tür).

The Germanic words are from PIE *dhwer- "a doorway, a door, a gate" (cf. Greek thura, Latin foris, Gaulish doro "mouth," Gothic dauro "gate," Sanskrit dvárah "door, gate," Old Persian duvara- "door," Old Prussian dwaris "gate," Russian dver' "a door").

The base form is frequently in dual or plural, leading to speculation that houses of the original Indo-Europeans had doors with two swinging halves. Middle English had both dure and dor; form dore predominated by 16c., but was supplanted by door.

A door is what a dog is perpetually on the wrong side of. [Ogden Nash]
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Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with leave the door open

leave the door open

Allow for further action or discussion. For example, This will's terms leave the door open for fighting among the heirs. This metaphoric expression transfers the invitation implied by an open door to future events. Also see open the door to.

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door

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.