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Sense: 1-3, 5-9
| Origin: | Old English loc |
| Origin: | Old English locc |
Related topics:1 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
fastening
[countable]D
I'm sorry, there isn't a lock on the bathroom door.The key turned stiffly in the lock.a bike lock2
under lock and key
a) kept safely in a box, cupboard etc that is locked : Dad keeps all his liquor under lock and key.
Dad keeps all his liquor under lock and key.b) kept in a place such as a prison
3 including every part of something : He moved the whole company, lock, stock, and barrel, to Mexico.
lock, stock, and barrel
He moved the whole company, lock, stock, and barrel, to Mexico.4
hair
a) [countable]DCB a small number of hairs on your head that grow and hang together
5 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
on a river etc
[countable]TTW6 a hold which wrestlers use to prevent their opponent from moving : a head lock
in a fight
[countable]DSOa head lock7 the degree to which a vehicle's steering wheel can be turned in order to turn the vehicle
vehicle
[uncountable and countable] British EnglishTTC8 a playing position in the game of rugby
rugby
[countable]9 complete control of something : Pro football still has a lock on male viewers aged 18 to 34.
a lock on something
American EnglishPro football still has a lock on male viewers aged 18 to 34.