Meaning of LOCK in English

LOCK

I. lock 1 S2 W3 /lɒk $ lɑːk/ BrE AmE verb

1 . FASTEN SOMETHING [intransitive and transitive] to fasten something, usually with a key, so that other people cannot open it, or to be fastened like this:

Did you lock the car?

I can’t get this drawer to lock.

2 . KEEP IN A SAFE PLACE [transitive always + adverb/preposition] to put something in a place and fasten the door, lid etc with a key

lock something in something

Lock the cat in the kitchen.

3 . FIXED POSITION [intransitive and transitive] to become fixed in one position and impossible to move, or to make something become fixed:

The wheels suddenly locked.

lock something around/round something

He locked his hands around the younger man’s throat.

A moment later they were locked in an embrace (=holding each other very tightly in a loving or friendly way) .

Their eyes locked together (=they could not look away from each other) for an instant.

4 . FIXED SITUATION [transitive usually passive] if you are locked in a situation, you cannot get out of it

be locked in/into something

The two groups are locked in a vicious cycle of killing.

The company is locked into a five-year contract.

5 . be locked in battle/combat/dispute etc to be involved in a long, serious argument or fight with someone:

They are now locked in a bitter custody battle over the three children.

6 . lock arms if people lock arms, they join their arms tightly with the arms of the people on each side:

The police locked arms to form a barrier against the protesters.

7 . lock horns (with somebody) to argue or fight with someone:

The band have now locked horns with their record company over the album.

—lockable adjective

lock somebody/something ↔ away phrasal verb

1 . to put something in a safe place and lock the door, lid etc SYN lock up :

He locked his money away in the safe.

2 . to put someone in prison SYN lock up :

I hope they lock him away for years.

3 . lock yourself away to keep yourself separate from other people by staying in your room, office etc

lock in phrasal verb

1 . lock somebody in (something) to prevent someone from leaving a room or building by locking the door:

She locked herself in.

They locked the director in his office.

2 . lock something ↔ in to do something so that a price, offer, agreement etc cannot be changed:

Sell your stocks now to lock in some of the gains of recent months.

3 . lock something ↔ in to make the taste, liquid etc remain in something:

This method of cooking locks in the flavour of the meat.

lock onto something phrasal verb

if a ↑ missile or ↑ satellite locks onto a ↑ target or signal, it finds it and follows it closely

lock somebody ↔ out phrasal verb

1 . to keep someone out of a place by locking the door

lock somebody ↔ out of

I locked myself out of the house!

2 . if employers lock workers out, they do not let them enter their place of work until they accept the employers’ conditions for settling a disagreement

⇨ ↑ lockout

lock up phrasal verb

1 . to make a building safe by locking the doors, especially at night:

I’ll leave you to lock up.

lock something ↔ up

Don’t forget to lock up the warehouse.

2 . lock something ↔ up to put something in a safe place and lock the door, lid etc SYN lock away

3 . lock somebody ↔ up to put someone in prison SYN lock away :

Rapists should be locked up.

4 . be locked up (in something) if your money is locked up, you have put it into a business, ↑ investment etc and cannot easily move it or use it

II. lock 2 S2 BrE AmE noun

[ Sense 1-3, 5-9: Language: Old English ; Origin: loc ]

[ Sense 4: Language: Old English ; Origin: locc ]

1 . FASTENING [countable] a thing that keeps a door, drawer etc fastened and is usually opened with a key or by moving a small metal bar:

I’m sorry, there isn’t a lock on the bathroom door.

The key turned stiffly in the lock.

a bike lock

⇨ pick a lock at ↑ pick 1 (10)

2 . under lock and key

a) kept safely in a box, cupboard etc that is locked:

Dad keeps all his liquor under lock and key.

b) kept in a place such as a prison

3 . lock, stock, and barrel including every part of something:

He moved the whole company, lock, stock, and barrel, to Mexico.

4 . HAIR

a) [countable] a small number of hairs on your head that grow and hang together

lock of

He gently pushed a lock of hair from her eyes.

b) locks [plural] literary someone’s hair:

long flowing locks

5 . ON A RIVER ETC [countable] a part of a ↑ canal or river that is closed off by gates so that the water level can be raised or lowered to move boats up or down a slope

6 . IN A FIGHT [countable] a ↑ hold which ↑ wrestler s use to prevent their opponent from moving:

a head lock

7 . VEHICLE [uncountable and countable] British English the degree to which a vehicle’s front wheels can be turned in order to turn the vehicle

8 . RUGBY [countable] a playing position in the game of ↑ rugby

9 . a lock on something American English complete control of something:

Pro football still has a lock on male viewers aged 18 to 34.

⇨ ↑ air lock , ↑ combination lock

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.