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English definition of “door”

door

noun [C] uk   /dɔːr/ us    /dɔːr/
A1 a flat object that is used to close the entrance of something such as a room or building, or the entrance itself: the front door the back door a car door a sliding door The door to his bedroom was locked. We could hear someone knocking at/on the door. Could you open/close/shut the door, please? She asked me to answer the door (= go and open it for someone). be on the door to work at the entrance of a building, collecting tickets or preventing particular people from entering used to refer to a house or other building: Sam only lives a few doors (away/up/down) from us. The people next door (to us) (= living in the house next to us) aren't very friendly. out of doors outside in the open air
(Definition of door from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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