lock
//lɒk//
Noun
A mechanical device that secures a door, container, or other object and can only be opened with a key, combination, or other mechanism.
I need a key to open this lock.
A section of a canal or waterway with gates at each end that can be opened or closed to raise or lower boats between different water levels.
The boat passed through the lock to reach the higher part of the canal.
A mechanism in a firearm that explodes the charge.
The gunsmith cleaned the lock mechanism carefully.
A state of being immovable or fixed in position.
The wheels were in a lock and wouldn't turn.
Verb
To fasten or secure something with a lock so that it cannot be opened without a key or combination.
Don't forget to lock the door when you leave.
To become fixed or immovable in position.
The wheels locked and the car skidded on the ice.
To confine or shut in a place by fastening the door or entrance.
They locked the dog in the garage.
To interlock or link together firmly.
The dancers locked arms and formed a circle.
Noun
A strand or curl of hair.
A lock of hair fell across her face.