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/lɒk/
Meaning & Definition
noun
A device for securing a door, gate, or container, requiring a key or combination to operate.
She turned the key and heard the satisfying click of the lock.
A mechanism that prevents movement or progress.
The security system has a lock on all unauthorized access.
verb
To secure something with a lock.
Please lock the door before you leave the room.
To prevent someone from entering or participating.
The committee decided to lock the application process until next month.
To make something immovable or inoperable.
He accidentally locked the wheels of his suitcase.
Etymology
Old English 'locc' meaning 'to enclose, fasten'.
Common Phrases and Expressions
lock and key
secured closely, unable to access.
lock horns
to engage in a conflict or argument.
lock down
to secure a place or situation.
lock in
to guarantee or secure an agreement.
Related Words
unlock
to open or release from a lock.
key
a device used to open a lock.
padlock
a detachable lock with a shackle that can be passed through a staple.
Slang Meanings
To lock someone up; to imprison.
He locked him up for the night after the incident.
To secure a deal or agreement.
We really locked it down with that last meeting.