Lock a place to stop someone leaving
Commit someone in such a way that they cannot leave
Close a workplace to stop workers entering
Lock a place to stop someone getting in
Go somewhere away from people to study or work
Close all doors, windows, etc.
Lock something in a safe place
Put in prison or a mental hospital
Find a target and head for it
Lock in a safe place
Put someone in prison or a mental hospital for a very long time
to automatically track a target
have a missile track a target