noun B2 Upper-Intermediate Uncommon

astronomy

uh-STRAHN-uh-mee

Astronomy (noun) means the scientific study of stars, planets, and the wider universe, including their positions, motion, and physical properties. Example: “She majored in astronomy and now works at a research observatory.”

noun

The scientific study of stars, planets, and the wider universe, including their positions, motion, and physical properties.

"She majored in astronomy and now works at a research observatory."

How to Use Astronomy

Learner’s notes

In plain EnglishThe science of studying space, stars, and planets.

Easily confused with

astrology →

Word Forms

astronomies plural

Study it as flashcards or scroll it in Flow — saved to your collection.

Test yourself on “astronomy” A quick quiz — meaning, synonyms & usage →

Fill the Gap

Can you complete this real example?

She majored in _____ and now works at a research observatory.

Rhymes for astronomy

roomy gloomy sodomy economy anatomy autonomy lobotomy colostomy vasectomy mastectomy tracheotomy thoracotomy

See all rhymes for astronomy →

Frequently Asked Questions

What does “astronomy” mean?

The word “astronomy” means the scientific study of stars, planets, and the wider universe, including their positions, motion, and physical properties. In plain terms, the science of studying space, stars, and planets.

How do you pronounce “astronomy”?

“Astronomy” is pronounced uh-STRAHN-uh-mee (/əˈstɹɑn.ə.mi/ in IPA).

How do you use “astronomy” in a sentence?

Here is “astronomy” used in a sentence: “She majored in astronomy and now works at a research observatory.”

What part of speech is “astronomy”?

“Astronomy” is a noun.

Is “astronomy” a common word?

“Astronomy” is an uncommon word in modern English, usually learned at around the B2 level.