one who stops, closes, shuts, or hinders; that which stops or obstructs; that which closes or fills a vent or hole in a vessel.-a short piece of rope having a knot at one or both ends, with a lanyard under the knot, -- used to secure something.-a name to several trees of the genus eugenia, found in florida and the west indies; as, the red stopper. see eugenia.-to close or secure with a stopper.