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planet

plan·et

planet

 
pronunciation:
plae niht
features:
Word History, Word Explorer
part of speech: noun
definition 1: a large, nonluminous celestial body, esp. one of the nine in the solar system, that revolves around a star and often has one or more satellites.
 
similar words:
world
definition 2: in astrology, any celestial body believed to influence human lives.
Word History
The word planet entered English eight hundred years ago, during the Middle Ages. "Planet" comes from the ancient Greek term asteres planetai or "wandering stars." In 1640, astronomers began using the word "planet" in its modern sense of a body that circles a star (the sun).
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  earth