Learner's definition of DOOR
1 a : 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.
b : a part of an object (such as piece of furniture or an appliance) that swings or slides open and shut
open/shut/slam/lock/bolt the door
I heard a knock on/at the door.
the bedroom/bathroom/cellar door
The car has four doors. = It's a four-door car.
Leave the package at the front/back/side door. [=the door at the front/back/side of the house, building, etc.]
Can you answer the door? [=open the door to see who is knocking on the door or ringing the doorbell]
Is somebody at the door? [=knocking on the door or ringing the doorbell]
Let me open the door for you. = (US) Let me get the door for you.
(US) Can you get the door? [=can you open or close the door for me?] My hands are full.
an exterior/outside door [=a door that can be used to enter or leave a building]
an interior door [=a door inside a building; a door that connects rooms]
a garage door [=a large door that covers the opening through which a car enters and leaves a garage]
turn/pull the door handle
a large brass door knocker [=knocker]
2 : the opening for a door: the entrance to a room or building
Please don't block the door.
I peeked through the open door.
He stood at/before the door.
He greeted his guests as they came in/through the door. = He greeted his guests at the door.
She walked out the door [=left] without saying goodbye.
standing (just/right) inside/outside the door [=inside/outside the room, building, etc., near the door]
3 : a house, building, apartment, office, etc. — used with an adverb to indicate where something is in relation to something else
◊ If you do something (from) door to door, you do it at each of the houses, apartments, or buildings in an area.
She lives in a house two doors down/up from me. [=there is one house between our houses]
The library is a few doors down from the bank. [=there are several buildings between the library and the bank]
We grew up two doors apart. [=with one house/apartment between our houses/apartments]
4 — used especially with open or unlock to describe an opportunity or possibility
The grant will open new doors for our town. [=will give our town new opportunities]
The discovery may unlock the door to a cure for the disease.
The door is open (to you) if you want a better job.
A good education can open/unlock the door of success. [=can make success possible]
The patent on the product has expired, which leaves the door open for [=makes it possible for] other companies to make it.
close the door on
: to no longer think about, consider, or accept (something)
I'd like to close the door on that chapter in my life.
The former senator says she hasn't closed the door on politics.
Don't close the door on your options.
close your doors
1 : to not allow someone to enter 2 of a business or organization : to close permanently: to stop operating
darken someone's door/doors
get your foot in the door
keep the wolf from the door
lay the blame for (something) at someone's door
: to blame someone for (something)
open your doors
1 : to allow someone to enter 2 of a business or organization : to open for business: to begin operating
show (someone) the door
: to tell or force (someone) to leave
We don't tolerate bad behavior. If you cause trouble, we'll show you the door.
If the coach doesn't win this year, they'll show him the door. [=they'll fire him]
show/see (someone) to the door
: to go to the door with (someone who is leaving)