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a. A movable structure used to close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates.
b. A similar part on a piece of furniture or a vehicle.
2. A doorway.
3. The room or building to which a door belongs: They live three doors down the hall.
4. A means of approach or access: looking for the door to success.
tr.v. doored, door·ing, doorsIdioms:
1. Slang To strike (a passing bicyclist, for example) by suddenly opening a vehicular door.
2. To serve as a doorman or doorwoman of (a nightclub, for example).
at (someone's) door
As a charge holding someone responsible: You shouldn't lay the blame for the fiasco at her door.
close/shut the door on
To refuse to allow for the possibility of: The secretary of state closed the door on future negotiations.
leave the door open
To allow for the possibility of: Let's leave the door open for future stylistic changes.
show (someone) the door Informal
1. To eject (someone) from the premises.
2. To terminate the employment of; fire.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.