lock

[lɒk]

lock Definition

• 1. a mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form.
• 2. a similar device used to prevent the operation or movement of a vehicle or other machine.
• 3. a short section of a canal or river with gates and sluices at each end, used for raising and lowering boats between two levels.

Using lock: Examples

Take a moment to familiarize yourself with how "lock" can be used in various situations through the following examples!

• Example

  I forgot my keys and now I can't unlock the lock.

• Example

  The bike was secured with a lock.

• Example

  The boat entered the lock and was raised to the higher level.

• Example

  The computer system has a lock on the file, preventing anyone from accessing it.

lock Synonyms and Antonyms

Synonyms for lock

• bolt
• bar
• latch
• fastener
• catch

Antonyms for lock

• unlock
• open

Phrases with lock

• lock and key

  a method of securing something in which a lock is fastened with a key

  Example

  The diary was kept under lock and key.

• lock horns

  to become involved in a dispute or argument

  Example

  The two politicians locked horns over the issue of tax reform.

• lock, stock, and barrel

  completely; entirely

  Example

  They moved to a new city, taking everything they owned lock, stock, and barrel.

Origins of lock

from Old English 'loc', related to Dutch 'lok' and German 'Loch'

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Summary: lock in Brief

A 'lock' [lɒk] is a device that keeps a door, lid, or machine fastened, usually requiring a specific key. It can also refer to a section of a canal or river with gates and sluices used for raising and lowering boats. Phrases like 'lock and key' and 'lock horns' are common, while 'lock, stock, and barrel' means completely.