Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “astronomy”

See all translations

astronomy

noun [U]  /əˈstrɑn·ə·mi/ us  
science the scientific study of the universe as a whole and of objects that exist naturally in space, such as the stars
Translations of “astronomy”
in Korean 천문학…
in Arabic عِلْم الفَلَك…
in French astronomie…
in Turkish gökbilimi, yıldızların ve gezegenlerin bilimsel çalışması, astronomi…
in Italian astronomia…
in Chinese (Traditional) 天文學…
in Russian астрономия…
in Polish astronomia…
in Spanish astronomía…
in Portuguese astronomia…
in German die Astronomie…
in Catalan astronomia…
in Japanese 天文学…
in Chinese (Simplified) 天文学…
(Definition of astronomy from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of astronomy?
Add Cambridge dictionaries to your browser to your website

Definitions of “astronomy” in other dictionaries

Word of the Day

hyphen

the symbol -, used to join two words together, or to show that a word has been divided into two parts at the end of one line and the beginning of the next

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More