1. The lightweight, elastic outer bark of the cork oak, used especially for bottle closures, insulation, floats, and crafts. 2. Something made of cork, especially a bottle stopper. 3. A bottle stopper made of other material, such as plastic. 4. A small float used on a fishing line or net to buoy up the line or net or to indicate when a fish bites. 5. phellem 6. To stop or seal with or as if with a cork. 7. tried to cork my anger. 8. To blacken with burnt cork.
