door

American  

[dawr, dohr] / dɔr, doʊr /

noun

doors plural

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.

door British  

/ dɔː /

noun

1. 1. a hinged or sliding panel for closing the entrance to a room, cupboard, etc

   2. ( in combination )

      doorbell

      doorknob

2. a doorway or entrance to a room or building

3. a means of access or escape

   a door to success

4. informal sport at an early stage

5. to lay (the blame or responsibility) on someone

6. in or into the open air

7. to order someone to leave

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door More Idioms  

1. see at death's door; at one's door; back door; beat a path to someone's door; behind closed doors; close the door on; darken one's door; foot in the door; keep the wolf from the door; lay at someone's door; leave the door open; lock the barn door; next door to; open doors; open the door to; see someone out (to the door); show someone out (to the door); show someone the door.

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Other Word Forms

Derived Forms

• doorless
  adjective
• half-door
  adjective

Inflected Forms

Nouns

• doors
  plural

Etymology

Origin of door

First recorded 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, Old Chursh Slavonic dvĭrĭ

Explanation

A door is a moving structure that when closed acts as a barrier to a room, house, building, or car. You'll have to open the door to let your dog come inside. Buildings have doors, and so do most vehicles. You might also have a special little door built into your own back door for your cat. Doors act as security, as they can be closed and locked, and also as ventilation when you open the door to let the spring air in. Being "out of doors" means you're outside, beyond all the doors of your house or building.

Example Sentences

In June, a reporter knocked on the door of the Denton County home.

From Salon • Jul. 7, 2026

“I don’t think he will let the minutes be a back door to something he doesn’t want the market to look at.”

From MarketWatch • Jul. 7, 2026

Behind the seemingly benign knock on the door is a system that has expanded exponentially over the last 50 years in ways no one planned.

From Slate • Jul. 7, 2026

In some cases, the requests can be simple, such as helping to fix a clogged toilet or a garage door that won’t open.

From Los Angeles Times • Jul. 7, 2026

But instead of going to knock on her door, I find myself in the kitchen.

From "Split the Sky" by Marie Arnold

Related Words

• exit
• gate