set-up

noun

1. Surveying.
   1. station(def 14a).
   2. a surveying instrument precisely positioned for observations from a station.
   3. a gap between the end of a chain or tape being used for a measurement and the point toward which it is laid.
2. setting-up exercise.

n.“arrangement,” 1890, from verbal phrase set up, attested from c.1200 as “to make ready for use” and from 1950 (in pugilism) as “to bring (someone) to a vulnerable position;” from set (v.) + up (adv.). The verbal phrase also can mean “to establish” (early 15c.) and “put drinks before customers” (1880).