Main Entry: un·lock

Pronunciation: \-ˈläk\

Function: verb

Date: 14th century

transitive verb

1 : to unfasten the lock of
2 : open, undo
3 : to free from restraints or restrictions <the shock unlocked a flood of tears>
4 : to furnish a key to : discloseintransitive verb : to become unfastened or freed from restraints