1. a group of countries or territories controlled by a single ruler or government
2. a large commercial organization or business network controlled by one person or group
3. supreme power or absolute dominion

Examples

• The Roman Empire lasted for centuries.
• The British Empire once spanned the globe.
• She built a media empire from a single newspaper.
• His business empire includes hotels and restaurants.
• The fashion empire was worth billions of dollars.
• Ancient empires rose and fell throughout history.
• The tech company expanded its empire into new markets.