- [countable]
a piece of wood, glass, etc. that is opened and closed so that people can get in and out of a room, building, car, etc.; a similar thing in a cupboard 门 
Open the door! 开(关)门 Close the door behind you, please. 请随手关门。 The door closed behind him. 他一出门，门就关上了。 to shut/slam/lock/unlock the door 关门/关门/锁门/开门 a knock on/at the door 敲门声 to knock/bang on the door 敲门/敲门 to answer the door (= to go and open it because somebody has knocked on it or rung the bell) 应门（听到敲门或门铃响后去开门） the front/back/side door (= at the entrance at the front/back/side of a building) 前门/后门/侧门 the bedroom/kitchen/car/garage door 卧室/厨房/汽车/车库的门 a four-door saloon car 四门轿车 the fridge door 冰箱门 the door frame/handle/lock 门框/把手/锁 - door to something
There are double doors to the rear garden. 后花园有双扇门。 The door to his office opened. 他办公室的门开了。 - door into/onto something
Each bedroom has a door onto the balcony. 每个卧室都有一扇门通向阳台。
Extra ExamplesTopics Houses and homesa1Always put the door chain on. 随时把门链扣上。 Go along the corridor and through the double doors. 沿着走廊一直走，穿过双层门。 He arrived home to find the door barred. 他到了家，却发现门闩上了。 He banged the front door behind him as he left. 他走的时候砰的一声关上了前门。 He came in the side door. 他进了侧门。 He flung the door open and caught them stuffing a document back into a briefcase. 他猛地推开门，发现他们正把一份文件塞回公文包里。 He had left the door ajar. 他让门微开着。 He leaned against the door jamb. 他靠在门的侧柱上。 He pulled the door shut. 他拉上了门。 I banged on the door for ages but still couldn't wake them. 我砰砰敲门好长时间，但是仍没能叫醒他们。 I left the door on the latch so that I could sneak back in later. 我虚掩上门，以便过会儿再溜进去。 I stopped at a low oak door set in the stone wall. 我在一扇安装在石墙上的橡木矮门边停了下来。 I tried the door but it was locked. 我试着打开这扇门，然而已被上了锁。 I was woken by a door banging in the wind. 风吹得门砰砰作响，把我惊醒了。 I went through the door marked ‘Enquiries’. 我穿过标有“问讯处”字样的门。 Parking is helped by wide door mirrors. 宽大的后视镜有助于泊车。 Remember to bolt the door before you go to bed. 记着上床前把门闩上。 She had trouble pushing the heavy door open. 她推开那扇厚重的门有困难。 The car drove off with its rear door flapping open. 汽车开走时，后门拍动着打开了。 The door bore a notice saying ‘Private’. 门上挂着一个牌子，上面写着“私人房屋”。 The door burst open and a little boy ran in. 门被猛地推开，跑进来一个小男孩。 The door connecting the two offices is kept locked. 连接两个办公室的门始终锁着。 The door opens onto a sunny terrace. 门开向阳光充足的阳台。 The door stood ajar so I could see a narrow section of the room. 门开了一条缝，因此我能看到房间内窄窄的一块地方。 The door was half-open when we got there. 我们到那儿时，门半开着。 The door was jammed shut. 门被卡住了。 The inner door leads to the safe and is always locked after 5 p.m. 里间那扇门通向保险箱，下午 5 点后总是锁着的。 They had to break the door down to get into the flat. 为了进入公寓，他们不得不把门撞破。 This door leads to my bedroom. 这个门通往我的卧室。 a creaking door hinge 一个嘎吱作响的门铰链 automatic garage doors 自动车库门 the door between the laundry room and the garage 洗衣房与车库之间的门 the door into the back garden 通向后花园的门 the rear door of a car 汽车后门 There was a knock on the door. 有人敲门。
- [countable]
the space when a door is open 出入口；门口 - through a/the door
Marc appeared through a door at the far end of the room. 马克从房间另一端的门口出现。 As we walked through the door, the phone rang. 当我们走进门时，电话响了。 - (informal) in the door
She's just arrived—she's just come in the door 她刚到，刚踏进门。 - (informal) out the door
He walked out the door. 他出门去了。
Extra ExamplesShe poked her head through the door to say goodbye. 她把头探出门外道别。 He stood in the door for several minutes before deciding whether he'd stay. 他站在门里边好几分钟才决定是否留下来。 He looked through the door to make sure the children were all right. 他从门口往里面看，确保孩子们都平安无事。
- through a/the door
- [countable]
the area close to the entrance of a building 门边；门旁 - at the door
There's somebody at the door (= at the front door of a house). 门口有人。 ‘Can I help you?’ asked the man at the door. “我能为您效劳吗？” 门边的男子问道。
- at the door
- [countable]
a house, room, etc. that is a particular number of houses, rooms, etc. away from another 栋；住户；人家 the family that lives three doors up from us 住在与我们相隔三户的那户人家 Our other branch is just a few doors down the road. 我们的另一家分店沿路过几个门面就到。
- [uncountable] (British English)
the amount of money made by selling tickets for an event 票房收入 50% of the door will go to the Red Cross. 50% 的票房收入将捐给红十字会。 Performers keep 75% of the door. 表演者保留75%的门。
Word OriginOld English duru, dor, of Germanic origin; related to Dutch deur ‘door’ and German Tür ‘door’, Tor ‘gate’; from an Indo-European root shared by Latin foris ‘gate’ and Greek thura ‘door’.
Idioms
at death’s door
- (often humorous)
so ill that you may die （因病重）生命危在旦夕；病危 I suppose you won’t be coming to the party if you’re at death’s door! 我想如果你已经奄奄一息了，你就不会来参加聚会了。
beat a path to somebody’s door
behind closed doors
without the public being allowed to attend or know what is happening; in private 与外界隔绝；秘密地；暗地里 The meeting was held behind closed doors. 会议秘密进行。
be on/work the door
to work at the entrance to a theatre, club, etc., for example collecting tickets from people as they enter 把门（在戏院、夜总会等门口做检票等工作） He was working the door at the event. 他在此次活动中负责迎门事宜。
by/through the back door
close/shut the door on something
close its doors | close shop
close, lock, etc. the stable door after the horse has bolted (British English)
(North American English close, lock, etc. the barn door after the horse has escaped)
to try to prevent or avoid loss or damage when it is already too late to do so 马跑了才去关厩门；贼走关门，为时已晚
(open) the door to something
(from) door to door
early doors
- (British English, informal)
at an early stage, especially in a game or competition 门： 在初期，尤其是在比赛或比赛中Suddenly we lost three home matches early doors. 突然我们提前输掉了三场主场比赛。 The team had the game in the bag early doors after tries from Ellis and Wilkins. 在埃利斯和威尔金斯的努力下，该队早早就赢得了比赛。
get/have a/your foot in the door
to manage to enter an organization, a field of business, etc. that could bring you success 设法加入，涉足（某组织、行业等） I always wanted to work in TV but it took me two years to get a foot in the door. 我一直想做电视工作，但花了两年才进了这个圈子。
keep the wolf from the door
- (informal)
to have enough money to avoid going hungry; to stop somebody feeling hungry 勉强度日；糊口
lay something at somebody’s door
- (formal)
to say that somebody is responsible for something that has gone wrong 把…归咎于某人；认为某人应对…负责 The blame for the disaster has been laid firmly at the government’s door. 这场灾难的责任被牢牢地归咎于政府。
leave the door open (for something)
to make sure that there is still the possibility of doing something 不把门堵死；保留可能性 We have left the door open for further talks. 我们为进一步会谈敞开了大门。
never darken my door again
- (old-fashioned, humorous)
used to tell somebody never to come to your home again 再不要跨进我的门槛；再不许踏进我的家门 Go! And never darken my door again! 走吧！ 下次不要再到我家来了！
open doors for somebody
to provide opportunities for somebody to do something and be successful 为…敞开大门；提供良机
out of doors
show somebody the door
to ask somebody to leave, because they are no longer welcome 要某人离开；下逐客令
shut/slam the door in somebody’s face
to shut a door hard when somebody is trying to come in 将某人拒之门外；让某人吃闭门羹 to refuse to talk to somebody or meet them, in a rude way 拒绝同某人谈话；拒绝见某人
to somebody’s door