To draw back; go back; retreat; take a sudden backward motion after an advance.To start or draw back, as from anything repulsive, distressing, alarming, or the like; shrink.To fall, rush, start, bound, or roll back, as in consequence of resistance which cannot be overcome by the force impressed; return after a certain strain or impetus: literally or figuratively.To fall off; degenerate.To drive back.n. A drawing back; retreat.n. A backward movement; a rebound: literally or figuratively.n. Specifically, the rebound or resilience of a firearm or a piece of ordnance when discharged.To coil again.