To unyoke or unhitch (oxen from a wagon); unharness or unsaddle (a horse or horses).To detach oxen from a wagon; hence, to encamp.n. The act of unyoking or unharnessing oxen or horses.n. The time and place of the outspan; hence, an encampment; a camp.To stretch beyond the span or reach of.To spread out or extend, as an arch.n. The entire span or stretch, especially the span of an arch.