1. a cork, plug, or other object used to close the opening of a bottle, jar, or other container
2. a person or thing that stops or prevents something
3. a relief pitcher brought in to prevent the opposing team from scoring
Usage: baseball

1. to close or seal with a stopper

Examples

• She pulled the stopper from the wine bottle.
• The rubber stopper kept the test tube sealed.
• The team’s defense was a real stopper against fast breaks.
• The manager brought in his best stopper to close the game.
• He stoppered the flask to prevent the chemicals from evaporating.
• The cork stopper had dried out and crumbled.
• Traffic cones served as stoppers to block the road.