[ uhn-lok ]
See synonyms for: unlockunlocked on Thesaurus.com

verb (used with object)
  1. to undo the lock of (a door, chest, etc.), especially with a key.

  2. to open or release by or as if by undoing a lock.

  1. to open (anything firmly closed or joined): to unlock the jaws.

  2. to lay open; disclose: to unlock the secrets of one's heart.

verb (used without object)
  1. to become unlocked.

Origin of unlock

1350–1400; Middle English unloken;see un-2, lock1

Other words from unlock

  • un·lock·a·ble, adjective

Words Nearby unlock

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use unlock in a sentence

British Dictionary definitions for unlock


/ (ʌnˈlɒk) /

  1. (tr) to unfasten (a lock, door, etc)

  2. (tr) to open, release, or let loose

  1. (tr) to disclose or provide the key to: unlock a puzzle

  2. (intr) to become unlocked

Derived forms of unlock

  • unlockable, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012