n.1. The position, direction, or way in which something, such as an automatic control, is set.
2. a. The context and environment in which a situation is set; the background.
b. The time, place, and circumstances in which a narrative, drama, or film takes place.
3. Music A composition written or arranged to fit a text, such as a poetical work.
4. A mounting, as for a jewel.
5. A place setting.
6. A set of eggs in a hen's nest.