1. (

• unlock

) open the lock of; "unlock the door" ;

2. (

• unlock ,

) set free or release ;

3. (

• unlock

) become unlocked; "The door unlocked from the inside" ;

1. (

• unbarred ,
• unbolted ,
• unlatched ,
• unlocked ,
• unsecured

) not firmly fastened or secured; "an unbarred door"; "went through the unlatched gate into the street"; "an unlocked room" ;