SLOTS

A broad, flat, wooden bar, a slat, especially as used to secure a door, window, etc.

A metal bolt or wooden bar, especially as a crosspiece.

An implement for baring, bolting, locking or securing a door, box, gate, lid, window or the like.

To bar, bolt or lock a door or window.

To shut with violence; to slam.

"to slot a door"

A narrow depression, perforation, or aperture; especially, one for the reception of a piece fitting or sliding in it.

A gap in a schedule or sequence.

The allocated time for an aircraft's departure or arrival at an airport's runway.

To put something (such as a coin) into a slot (narrow aperture)

To assign something or someone into a slot (gap in a schedule or sequence)

To put something where it belongs.