- merry-go-round (def. 1).
- a continuously revolving belt, track or other device on which items are placed for later retrieval: a baggage carousel at an airport.
- a circular tray in which photographic transparencies are held on a projector and from which they are lowered through slots for projection as the tray is rotated.
- a circular magazine in which slides for a projector are held: it moves round as each slide is shown
- a rotating conveyor belt for luggage, as at an airport
- a revolving circular platform provided with wooden animals, seats, etc, on which people ride for amusement
- a tournament in which horsemen took part in races and various manoeuvres in formation
