put a lock on

Local supporters put a lock on the gate so neighbours believe the house is unoccupied, said other inmates.

It’s good that your father understands the problem enough to put a lock on your room, but he also needs to talk to your stepmother.

So he's not allowed to possess or even be in the immediate vicinity of the stuff he was keeping in his office, or in the Mar-a-Lago storeroom that was not adequately secured until the DOJ demanded in June that he put a lock on the door.

She wants to put a lock on her bedroom door.

"We thought it would be quite nice to put a lock on, just symbolic really."