satellite
US /ˈsæt̬.əl.aɪt/
UK /ˈsæt̬.əl.aɪt/
1.
an artificial body placed in orbit around the earth or another planet in order to collect information or for communication
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The communication satellite relays signals around the globe.
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Many countries launch their own satellites for various purposes.
2.
a celestial body orbiting a planet or star
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The Moon is Earth's natural satellite.
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Jupiter has many natural satellites, including the Galilean moons.
3.
a country or state that is controlled by a more powerful one
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During the Cold War, several nations were considered satellite states of the Soviet Union.
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The smaller town became a satellite community to the larger city.
1.
dependent on or controlled by a larger or more important entity
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The smaller office functions as a satellite branch of the main company.
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The university has several satellite campuses in different cities.