• verb
• synonym
• antonym

• noun
• synonym
• antonym

• Yale lock
  1. a type of lock often used on the main door of a house or building. Yale locks are very common in the UK and they have a special type of key.
• air lock (noun)
  1. a small room used for moving between two places that do not have the same air pressure, for example in a spacecraft
  2. a small amount of air in a pipe that stops liquid flowing through it
• anti-lock braking system (noun)
  1. a piece of equipment that makes a vehicle easier to control when you have to stop very suddenly
• caps lock (noun)
  1. the button that you press on a computer when you want to use capital letters
• combination lock (noun)
  1. a lock which can only be opened by using a series of numbers or letters in a particular order
• cylinder lock (noun)
  1. a lock in which a cylinder rotates to move a bolt; tumblers are pins; inserting the key lifts and aligns the pins to free the cylinder to rotate
• full lock (noun)
  1. if you turn the STEERING WHEEL of a car to full lock, you turn it as far as it can be turned
• ignition lock (noun)
  1. a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
• lever lock (noun)
  1. a lock whose tumblers are levers that must be raised to a given position so that the bolt can move
• lock chamber (noun)
  1. enclosure consisting of a section of canal that can be closed to control the water level; used to raise or lower vessels that pass through it
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• lock away (phrasal verb)
  1. lock away or lock up to put something in a place or container which you fasten with a lock
  2. lock away or lock up to put someone in a prison, or in a hospital for mentally ill people
• lock in (phrasal verb)
  1. to put someone in a room and lock the door so they cannot leave
  2. lock in profits / gains etc business to get a financial benefit that continues for a long time, for example by selling shares that have gone up in value before they can go back down
• lock in on (phrasal verb)
• lock into (phrasal verb)
  1. lock someone/something into something to involve someone or something in a system, plan etc in such a way that they cannot easily escape from it
• lock onto (phrasal verb)
  1. lock onto something if a missile or a vehicle carrying missiles locks onto something, it finds out its position and prepares to destroy it
• lock out (phrasal verb)
  1. to prevent someone from coming into a room or building by locking the door
  2. if a company locks out its workers, it closes their place of work so that they cannot go to work until they agree to the employer’s conditions
• lock up (phrasal verb)
  1. [intransitive/transitive] to lock all the doors and windows of a building so that no one can get in
  2. [transitive] same as lock away (sense 1)
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