A horizontal bar or latch made of wood or metal used to hold a door closed from the inside.

To fasten the horizontal bar or bolt on a door to lock it from the inside.

To close the door and slide the bolt; metaphorically refers to a matter that is settled and cannot be changed

the breechbolt of a firearm such as a rifle

latch; bolt used to lock a door or window

To fasten or shut a door with a bolt or bar.