empire
US /ˈem.paɪr/
UK /ˈem.paɪr/
1.
an extensive group of states or countries under a single supreme authority, formerly especially an emperor or empress
:
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The Roman Empire lasted for centuries.
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The British Empire once covered a quarter of the world's land area.
2.
an organization or business of immense size and scope
:
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He built a vast business empire from scratch.
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The media empire owned numerous newspapers and television stations.