to move swiftly; especially, to move as if driven forward by something.-to be driven swiftly, or to run, before a gale, with little or no sail spread.-to pass over quickly.-the act of scudding; a driving along; a rushing with precipitation.-loose, vapory clouds driven swiftly by the wind.-a slight, sudden shower.-a small flight of larks, or other birds, less than a flock.-any swimming amphipod crustacean.