Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “lock”

See all translations

lock

verb
 
 
/lɒk/
FASTEN [I, T] B1 to fasten something with a key, or to be fastened with a key: Did you lock the door? If you shut the door it will lock automatically. →  Opposite unlock Locking and bolting
lock sth/sb away/in, etc B2 to put something or someone in a place or container that is fastened with a key: She locked herself in her bedroom. Most of my jewellery is locked away in a safe.Locking and bolting
FIXED [I] to become fixed in one position: I tried to move forward but the wheels had locked.Immobility
(Definition of lock verb from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “lock” in other dictionaries

Word of the Day

luck out

to be very lucky

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More