A narrow depression, notch, or opening for receiving or admitting something, especially a coin or letter. Also called slit, aperture, or fenestra. (computing) A space on a disk or other media in which data is stored or recorded.

A track, trail or mark, as of a deer; a spoor.

(obsolete, Scotland, Northern England) An implement for barring, bolting or locking a door, box, gate, lid, window or the like. Also used as a verb, to slot (see below).

The narrow area directly in front of an opponent’s goal in field hockey or ice hockey, or the area between the face-off circles in ice skating.

In video slot machines, the area of the screen containing the wheels and symbols that pay out when they line up on the machine’s paytable. The paytable also tells how many coins or credits the bettor will win for each symbol on the payline.

The T-slot table is an extended work surface for the universal testing machine that mounts onto the base frame via the standard Instron grips. Commercially available T-slot nuts slide into the inverted T-slot on the table to allow for the attachment of text fixtures, studs and threaded rods. This allows for precise positioning of specimens in the test space, which helps to minimize ejection of materials during tensile, compression and flexural tests. It also allows for the attachment of a range of other accessories including stops, guides and slides. This makes the T-slot table a versatile addition to any lab that performs a variety of tests on different types of material.