lock Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "lock" - English Dictionary

See all translations

locknoun

uk   /lɒk/  us   /lɑːk/

lock noun (FASTENER)

B1 [C] a device that prevents something such as a door from being opened and can only be opened with a key: I heard someone turn a key in the lock. safety locks Thieves got in by smashing the lock off the door.
See also
More examples

lock noun (WATER)

[C] a length of water with gates at each end where the level of water can be changed to allow boats to move between parts of a canal or river that are at different heights

lock noun (DEFINITE EVENT)

[C] US informal something that is certain to happen: She's a lock for promotion this year.

lock noun (HAIR)

[C] a small group of hairs, especially a curl: There is a lock of Napoleon's hair in the display cabinet.locks [plural] literary the hair on someone's head: curly locks flowing golden locks

lock noun (WHEELS)

[U] UK the amount a road vehicle's front wheels can be turned from one side to the other by turning its steering wheel : You need it on full lock (= with the wheel turned as much as possible).

lock noun (HOLD)

[C] a way of holding someone that you are fighting against so that they cannot move: The smaller wrestler held his opponent in a full body lock.

lockverb

uk   /lɒk/  us   /lɑːk/

lock verb (MAKE SAFE)

B2 [T usually + adv/prep] to put something in a safe place and fasten the lock: He locked the confidential documents in his filing cabinet. You really should lock your car (up) or it'll get stolen.B1 [I or T] to fasten something with a key, or be fastened with a key: Don't forget to lock the door when you go out. If you shut the door it will lock automatically.
More examples

lock verb (BECOME FIXED)

[I] to become fixed in one position: I tried to start moving but the wheels had locked.
(Definition of lock from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of lock?
Add Cambridge dictionaries to your browser to your website

Definitions of “lock” in other dictionaries

Word of the Day
stretch the truth

to say something that is not completely honest in order to make someone or something seem better than it really is

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With the USA’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most

Read More 

generation pause noun
generation pause noun
July 06, 2015
informal young adults who are not able to do things previously typical for their age group such as buy a home or start a family because of lack of money Meanwhile, a new study released last week revealed a quarter of Brits believe they’ll never own a property, leading them to be

Read More