1. a person who has control or authority over others
2. a person who is very skilled at something
3. a male teacher
Usage: formal; British

1. to learn or understand something completely
2. to control or defeat something

1. main or most important

Examples

• The dog obeyed its master immediately.
• She is a master of classical piano.
• It took years to master the art of cooking.
• The master bedroom has its own bathroom.
• He worked hard to master his fear of heights.
• The master copy of the film was stored safely.
• The chess master won every game.