Synonyms for satellite

noun

1. A small planet that revolves around a larger one

   moon, planetoid, minor planet, secondary planet, inferior planet, asteroid.

2. A man-made object put into orbit around a celestial body

   space satellite, robot satellite, unmanned satellite, space station, orbital rocket, artificial moon, spacecraft, man-made moon, communications satellite, spy satellite, weather satellite, relay satellite, sputnik, satellite station, spy-in-the-sky.

   Well known man-made satellites include: Tiros, Discoverer, Sputnik, Syncom, Early Bird, Echo, Telstar, Relay, Nimbus, Secor, Skylab, Soyuz, Mir, Ranger, Comstar, Voyager, Explorer, Intelsat, GOES, Viking, Landsat, NAVSTAR.

3. A smaller country dependent upon a larger one

   protectorate, dependency, former colony, buffer state, mandate.