spinnaker

noun

1. A sail supplemental to the mainsail, especially a triangular one, used on yachts for running before the wind.

verb

1. To sail using a spinnaker

   “On the port tack layline , you're defenseless against starboard tackers — you have to dip them , no matter how much you may lose doing it — and the wind shadow of boats spinnakering away from the mark can cost you plenty.”

   “We spinnakered out into the Atlantic and, fortunately, the wind died as night fell.”