Dictionary.com
Thesaurus.com
Synonyms

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.


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. 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 escape

    a door to success

  3. informal sport at an early stage

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

  5. in or into the open air

  6. to order someone to leave

"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

door More Idioms  

Other Word Forms

Derived Forms

Inflected Forms

Nouns

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.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

They'd been knocking on the door for three seasons, under different managers, before he arrived; second, third and second in the three campaigns prior to his elevation from coaching at underage level.

From BBC Aug. 17, 2026

The discovery could open the door to a different way of treating cancer.

From Science Daily Aug. 17, 2026

Section 301 has also opened the door to new country-specific tariffs targeted at Brazil, at 25%, while Section 338 was cited to slap an extra 50% import tax on certain Canadian goods.

From Salon Aug. 16, 2026

The billionaire entrepreneur Fernando De Leon says he was shown the door as an analyst at Goldman Sachs, and took it as a sign that he wasn’t meant to answer to anyone.

From The Wall Street Journal Aug. 15, 2026

The week before, two blocks over, Ms. Hardy’s door was also spray-painted.

From "Split the Sky" by Marie Arnold

"All the window and doors have melted and everything has gone," she said.

From BBC Aug. 16, 2026

A mother of one living near one of the military camps that were hit told AFP the strikes shook the windows and doors like a quake.

From Barron's Aug. 16, 2026

Ricci went viral for taking viewers behind the closed doors of his family’s quarterly money meetings, all the way down to agendas.

From The Wall Street Journal Aug. 15, 2026

The ground floor features an open great room with a wood-paneled ceiling and a wall of bifold glass doors, which open to a landscaped conversation area.

From MarketWatch Aug. 14, 2026

He rattled around in the house and kept trying to walk out through the windows and glass doors, so we let him outside and kept his food dish full and left him untied.

From "Woodsong" by Gary Paulsen

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training