A narrow depression, slit, or opening: a slot for coins in a vending machine; a mail slot. Also, a position or period of time in a sequence or schedule: I reserved my haircut for the 2 p.m. slot. He slotted into place at the head of the copy desk.
In ornithology, a narrow notch between the primaries of certain birds to provide space for airflow and facilitate the smooth passage of air over the wings. In sports, a clear area in front of an opposing team’s goal, affording a good vantage point for an attacking player: He was hoping to score on the first shift and take the lead from their slot.
Linguistics. (chiefly in tagmemics) a position having a specific function within a construction into which any one of a set of morphemes can fit; see also slot (def. 2).
A metal bolt used to fasten a door, box, gate, or lid; also, an opening in such an object, often with a latch. Also, an opening in a wall, door frame, or the like, into which a window or vent is installed: This kitchen has two windows with slots for air intake.
From Middle English slit, from Old French slit, from Proto-Germanic *sluta, from Proto-Germanic *sleutana (“to lock”), cognate with Dutch sloep and German Schloss; see lock. The slots in the woodwork are carefully crafted. He worked on the carving until he filled all the slots in the frame.