Slot is a grammatical term in tagmemics that can fit any morpheme sequence. It can refer to any type of job or assignment. For instance, the chief copy editor has been occupying a slot for the past 20 years. It can also refer to an airport or an air-traffic authority.
Slots are usually small, narrow openings. A slot is a useful place for receiving things. It can also be used as a position or sequence in a series. A slot can also be a job opening. An aircraft has a slot on the wing to help the plane move air. A slot is a useful feature in aviation because it allows air to flow better.