[transitive, intransitive]lock (something)to fasten something with a lock; to be fastened with a lock（用锁）锁上；被锁住
Did you lock the door?你锁门了吗？
David locked the car and slipped the key into his pocket. 大卫锁上汽车，把钥匙塞进口袋。
The gates are locked at 6 o'clock.6点钟锁大门。
a locked cabinet上锁的柜子
This suitcase doesn't lock.这手提箱锁不上。
oppositeunlock(1)
Keep your garage securely locked.把你的车库锁严。
The door locks automatically.这种门自动锁闭。
Collocations Dictionaryadverb
carefully
automatically
electronically
…
verb + lock
forget to
phrases
be firmly locked
be securely locked
keep something locked
…
keep safe使安全
[transitive]lock something + adv./prep.to put something in a safe place and lock it把…锁起来
She locked her passport and money in the safe.她把自己的护照和钱锁在了保险柜里。
Collocations Dictionaryadverb
away
in
preposition
in
phrases
be safely locked
be securely locked
become fixed卡住
[intransitive, transitive]lock (something) (in/into/around, etc. something)|lock (something) (together)to become or make something become fixed in one position and unable to move（使）固定，卡住，塞住
The brakes locked and the car skidded.汽车刹车抱死，车打滑了。
He locked his helmet into position with a click.他咔哒一声把头盔扣好。
Topics Transport by car or lorryb2
in difficult situation
[transitive]
be locked in/into something
to be involved in a difficult situation, an argument, etc.陷入，卷入（困境、争论、争执等）
The two sides are locked into a bitter dispute.双方陷入了激烈的争论。
She felt locked in a loveless marriage.她觉得自己陷入了一桩没有爱情的婚姻。
Topics Opinion and argumentc2
be held tightly
[transitive]
be locked together/in something
to be held very tightly by somebody被紧紧抓住（或抱住）
They were locked in a passionate embrace.他们热烈地拥抱在一起。
computing计算机技术
[transitive]lock something(computing计算机)to use a code or password to prevent data on a phone or computer from being changed or looked at by somebody without permission加锁；锁（定、紧）
These files are locked to protect confidentiality.为了保密，这些文件都加了锁。
My phone is locked and I've forgotten the password.我的电话被锁住了，我忘记了密码。
Make sure you lock your screen if you leave your desk.如果你离开办公桌，一定要锁屏。
词源verb Old English loc, of Germanic origin; related to German Loch ‘hole’.
Idioms
lock horns (with somebody) (over something)
to get involved in an argument with somebody涉及（与某人的）争论（或争端、纠纷）
The company has locked horns with the unions over proposed pay cuts.公司与工会就减薪计划争论不休。
Topics Opinion and argumentc2
lock
noun
/lɒk/
/lɑːk/
Idioms
for door, window, etc.
[countable]a device that keeps a door, window, box, etc. shut, usually needing a key to open it锁
She turned the key in the lock.她转动锁眼里的钥匙。
It's a good idea to have locks fitted on all your windows.在你所有的窗户上都装上锁是个好主意。
see alsocombination lock,mortise lock,Yale lock™
Most cars are now fitted with child safety locks on the back doors.多数小轿车现在都在后门配置了儿童安全锁。
She ran around the house, checking all the locks.她在房子各处跑了一遍，检查所有的锁。
The hotels replaced their mortise locks on guest rooms with magnetic card readers.宾馆把客房门上的插锁换成了磁卡阅读器。
They changed the locks on the doors and windows. 他们换了门窗上的锁。
Topics Houses and homesa2,Buildingsa2
Collocations Dictionaryadjective
combination
cylinder
deadbolt
…
verb + lock
fit
break
force
…
phrases
insert the key in the lock
turn the key in the lock
under lock and key
…
for vehicle/equipment
[countable]a device that prevents a vehicle, machine or piece of equipment from being used车锁；制动器；锁定器；制轮楔
a bicycle lock自行车的车锁
a steering lock转向锁
safety locks for handguns手枪保险栓
see alsoD-lock,time lock
Collocations Dictionaryadjective
combination
cylinder
deadbolt
…
verb + lock
fit
break
force
…
phrases
insert the key in the lock
turn the key in the lock
under lock and key
…
on computer/phone
[countable]a feature on a computer or mobile phone that prevents somebody from accessing it without a code计算机或移动电话上的一种功能，可以防止没有密码的人访问它
There's a security lock on the phone.电话上有安全锁。
being fixed in position
[uncountable]a state in which the parts of a machine, etc. do not move（机器部件等的）锁定
[uncountable, singular](British English)(on a car, etc.汽车等)the amount that the front wheels can be turned in one direction or the other in order to turn the vehicle前轮转向角度
I had the steering wheel on full lock(= I had turned it as far as it would turn).我把方向盘转到了底。
see alsoanti-lock
on canal or river
[countable]a section of canal or river with a gate at either end, in which the water level can be changed so that boats can move from one level of the canal or river to another（运河或河流的）闸，船闸
Culture canalscanalsBritain's canals(= man-made channels of water for boats to travel along) were built in the late 18th and early 19th centuries, at the start of the Industrial Revolution. They provided a cheap and convenient means of transport for heavy goods, especially between the mining and industrial centres of the Midlands and north-west England. Coal, grain, clay and other materials were transported on narrowboats, also called barges, that were pulled along by horses walking along a towpath next to the canal. Many miles of channel had to be dug, with some sections passing through tunnels or over aqueducts(= long, high bridges across valleys). Hundreds of locks were built to enable boats to go up or down a hill. A flight(= series) of 20 or 30 locks was needed on some steep sections.In the US canals were used for a short period to transport goods to areas where there were no large rivers. The most famous, the Erie Canal in New York State, ran from Buffalo on Lake Erie to Albany on the Hudson River and connected New York with Ohio, Michigan and Pennsylvania. Mules, not horses, were used to pull the barges. The growth of the railway in the 1840s soon took business away from the canals, but the canal system played an important role in expanding trade and encouraging people to move west.After the railways were built, many canals were filled in. In Britain especially, canals that still exist have become popular with people wanting a quiet country holiday away from traffic. Old narrowboats have been fitted with motors and converted to provide attractive holiday accommodation. Speed is limited on canals so the pace is slow and relaxing. Some locks are operated by lock-keepers, but many are worked(= opened and closed) by people on the boats. Going through a flight of locks is seen as part of the fun. At night, people moor their boats at the side of the canal. Canals are also popular with people fishing and walking on the towpath. Many pubs are built next to canals and attract people enjoying a canal holiday or having a day out.In Britain, some people live in narrowboats and stay most of the time on a particular stretch of canal. These houseboats are often painted in bright colours, with pictures of flowers on the side. On the flat roof there are sometimes traditional pots painted with similar designs.
hair头发
[countable]a few hairs that hang or lie together on your head一绺（或一缕）头发
John brushed a lock of hair from his eyes.约翰撩开眼前的一绺头发。
She kept a lock of her mother’s hair.她留着一绺她母亲的头发。
Collocations Dictionaryadjective
stray
flowing
blonde
…
locks
[plural](literary)a person’s hair头发
She shook her long, flowing locks.她甩了甩她那飘逸的长发。
Topics Appearancec2
Collocations Dictionaryadjective
stray
flowing
blonde
…
in rugby
[countable]a player in the second row of the scrum（并列争球的）第二排前锋，锁球队员Topics Sports: ball and racket sportsc2
total control
[singular]a lock (on something)(North American English)total control of something（对某事物的）完全控制
One company had a virtual lock on all orange juice sales in the state.有一家公司实际上垄断了整个州的橙汁销售。
see alsoarmlock,headlock
词源noun senses 1 to 5 and noun senses 8 to 9 Old English loc, of Germanic origin; related to German Loch ‘hole’. noun senses 6 to 7 Old English locc, of Germanic origin; related to Dutch lok, German Locke, possibly also to the verb lock.
Idioms
lock, stock and barrel
including everything全部；所有
He sold the business lock, stock and barrel.他把生意全盘卖掉了。
pick a lock
to open a lock without a key, using something such as a piece of wire（用铁丝等）捅开锁
The burglars must have picked the lock on the back door.窃贼一定是撬开了后门的锁。
(keep something/put something/be) under lock and key
locked up safely somewhere; in prison把…安全地锁起来；在押；被囚禁
We keep our valuables under lock and key.我们把贵重物品锁起来收好了。
I will not rest until the murderer is under lock and key.杀人凶手一天不关起来我一天不罢休。
Prisoners are kept under lock and key 24 hours a day.囚犯一天 24 小时都被关押着。