Definition of CORK

• to close with a cork
• to stop up [v CORKED, CORKING, CORKS]
• the elastic tough outer tissue of the cork oak that is used especially for stoppers and insulation
• usually cork stopper for a bottle or jug
• fishing float
• the bark of a Mediterranean oak tree
• stopper of cork, rubber, etc.
• to lose one's temper; release one's emotional or physical tension