From Longman Dictionary of Contemporary Englishdoordoor1 /dɔː $ dɔːr/ ●●● S1 W1 noun [countable] 1 
TBBDHthe large flat piece of wood, glass etc that you move when you go into or out of a building, room, vehicle etc, or when you open a cupboard → gate Could you open the door for me? The door flew open and Ruth stormed in. Don’t forget to lock the garage door. → fire door, French doors, revolving door(1), sliding door, stage door, swing door, trapdoor2 DHthe space made by an open door SYN doorwayin/out (of)/through the door Rick turned and ran out of the door. I glanced through the open door.3 → at the door4 → out of doors5 → show/see somebody to the door6 → two/three etc doors away/down/up7 → (from) door to door8 → be on the door9 → shut/close the door on something → at death’s door at death(7), → behind closed doors at closed(5), → get in through the back door at back door(2), → lay something at somebody’s door at lay2(19), → next door1, → open doors (for somebody) at open2(16), → open-door policy, → open the door to something at open2(16), → show somebody the door at show1(20)COLLOCATIONSverbsopen/close/shut the doorI opened the door and Dad was standing there.Can you close the door as you go out?slam/bang the door (=shut it loudly, usually because you are angry)He strode from the room, slamming the door behind him.answer the door (=open it for someone who has knocked or pressed the bell)Lucy ran downstairs to answer the door.a door leads somewhere (=used to say what place is on the other side of a door)This door leads into the garden.a door opens/closes/shutsWe were still waiting for the train doors to open.a door slams/bangs (shut) (=shuts loudly)I heard the front door slam.a door flies/bursts open (=opens very suddenly and quickly)Then the door burst open and two men with guns came in.a door swings open/shut (=moves forward to open or backwards to shut)The door swung shut behind me.a door slides open/shut (=moves smoothly to the side or back again)The lift doors slid open and we got in.lock/unlock the doorI locked the door and turned out the lights.bolt the door (=slide a metal bar across to fasten it)Once inside, he bolted the door.knock on/at the door (=hit it with your hand to make someone open it)Who's that knocking at the door?bang/hammer on the door (=hit it very loudly and urgently)A policeman was banging on the door across the road.tap on/at the door (=hit it very gently)I tapped on the door and opened it.get the door (=open or close it for someone)Could you get the door for me?ADJECTIVES/NOUN + doorthe front/back/side door (=of a house)I heard someone knocking at the front door.Use the back door if your boots are muddy.the main door (=the door into a building that most people use)The main door to the hotel is on Queen Street.the kitchen/bedroom/bathroom etc doorThe kitchen door opened and Jake walked in.the cupboard door British English, the closet door American EnglishBoth the cupboard doors were locked.the fridge/oven doorSteam came out as I opened the oven door.a car doorShe heard a car door slamming.the passenger door (=for the person in a car who sits beside the driver)The taxi driver was holding open the passenger door.a rear door (=a door at the back of a vehicle)The kids opened the rear doors and climbed in.door + NOUNa door handle (=that you move up or down to open a door)Ella reached for the door handle.a door knob (=that you turn to open a door)I turned the door knob and went into the room.a door knocker (=a metal object on a door that you use to knock with)There was a brass door knocker in the shape of a lion's head.a door bell (=that you press to make it ring)Adam walked up the path and rang the door bell.a door keyShe was looking in her bag for her door key.
TBBDHthe large flat piece of wood, glass etc that you move when you go into or out of a building, room, vehicle etc, or when you open a cupboard → gate Could you open the door for me? The door flew open and Ruth stormed in. Don’t forget to lock the garage door. → fire door, French doors, revolving door(1), sliding door, stage door, swing door, trapdoor2 DHthe space made by an open door SYN doorwayin/out (of)/through the door Rick turned and ran out of the door. I glanced through the open door.3 → at the door4 → out of doors5 → show/see somebody to the door6 → two/three etc doors away/down/up7 → (from) door to door8 → be on the door9 → shut/close the door on something → at death’s door at death(7), → behind closed doors at closed(5), → get in through the back door at back door(2), → lay something at somebody’s door at lay2(19), → next door1, → open doors (for somebody) at open2(16), → open-door policy, → open the door to something at open2(16), → show somebody the door at show1(20)COLLOCATIONSverbsopen/close/shut the doorI opened the door and Dad was standing there.Can you close the door as you go out?slam/bang the door (=shut it loudly, usually because you are angry)He strode from the room, slamming the door behind him.answer the door (=open it for someone who has knocked or pressed the bell)Lucy ran downstairs to answer the door.a door leads somewhere (=used to say what place is on the other side of a door)This door leads into the garden.a door opens/closes/shutsWe were still waiting for the train doors to open.a door slams/bangs (shut) (=shuts loudly)I heard the front door slam.a door flies/bursts open (=opens very suddenly and quickly)Then the door burst open and two men with guns came in.a door swings open/shut (=moves forward to open or backwards to shut)The door swung shut behind me.a door slides open/shut (=moves smoothly to the side or back again)The lift doors slid open and we got in.lock/unlock the doorI locked the door and turned out the lights.bolt the door (=slide a metal bar across to fasten it)Once inside, he bolted the door.knock on/at the door (=hit it with your hand to make someone open it)Who's that knocking at the door?bang/hammer on the door (=hit it very loudly and urgently)A policeman was banging on the door across the road.tap on/at the door (=hit it very gently)I tapped on the door and opened it.get the door (=open or close it for someone)Could you get the door for me?ADJECTIVES/NOUN + doorthe front/back/side door (=of a house)I heard someone knocking at the front door.Use the back door if your boots are muddy.the main door (=the door into a building that most people use)The main door to the hotel is on Queen Street.the kitchen/bedroom/bathroom etc doorThe kitchen door opened and Jake walked in.the cupboard door British English, the closet door American EnglishBoth the cupboard doors were locked.the fridge/oven doorSteam came out as I opened the oven door.a car doorShe heard a car door slamming.the passenger door (=for the person in a car who sits beside the driver)The taxi driver was holding open the passenger door.a rear door (=a door at the back of a vehicle)The kids opened the rear doors and climbed in.door + NOUNa door handle (=that you move up or down to open a door)Ella reached for the door handle.a door knob (=that you turn to open a door)I turned the door knob and went into the room.a door knocker (=a metal object on a door that you use to knock with)There was a brass door knocker in the shape of a lion's head.a door bell (=that you press to make it ring)Adam walked up the path and rang the door bell.a door keyShe was looking in her bag for her door key. Examples from the Corpus
door• He kept walking up and down, up and down, on the pavement opposite her door.• At 44, she found most doors slammed shut.• I'd allowed the door to swing to behind me and just as it clicked shut, some one knocked.• He stepped outside, closed the doors, switched off the flashlight and walked back up the slope to the cottage.• A Sturmabteilung opened the door that led into the cabin and Frick walked through, the others following.• He got out of bed and tiptoed to the door to listen.• We had the trap door, the back door.in/out (of)/through the door• In a slightly awkward movement, he shows her out the door.• I couldn't possibly get the peg in the door before he got his foot in it.• He stood in the door of the milking house, holding out the buckets for her to take.• His aide signaled to me to move quickly and followed us out the door.• Maybe we only come to fully appreciate many great athletes and artists just before they walk out the door.• More or less, Ijust walked out the door, and kept walking.• Got up and went out the door and everything looked different.• Carefully he peeked through the glass window in the door.doordoor2 verb [transitive] to hit someone with a car door when they are riding past on a bicycle I nearly got doored as I went past the flats in Camden Street.→ See Verb tableOrigin door Old English duru “door” and dor “gate” 