astronomy
Sayuh-STRON-uh-mee/əˈstɹɑn.ə.mi/UK/əˈstɹɒn.ə.mi/
- 1The study of space beyond the air around Earth, including where things in it are and what they are like.
She wants to study astronomy in college.
Our astronomy club meets on clear nights to look at the moon.
Note
- 2Astrology, the reading of the stars and planets to tell what will happen to people.
The king asked a wise man to use astronomy to tell his future.
She believed astronomy could show whether her marriage would be happy.
Note
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Origin
From Old French astronomie, made of astro- ("star") and -nomy. It replaced an Old English word for the subject.