Simple Definition of unlock
: to open the lock on (something)
: to find out about (something that was secret or unknown)
: to make (something) available for use
Examples of unlock
Could you unlock the door for me?
geneticists unlocking the secrets of DNA
The material's potential was unlocked only through extensive testing.
How can I unlock my computer if I've forgotten the password?
This class will unlock your creativity.
First Known Use of unlock
Seen and Heard
What made you want to look up unlock? Please tell us where you read or heard it (including the quote, if possible).