astronomy: meaning, definition, pronunciation and examples
B2formal/academic/technical
Quick answer
What does “astronomy” mean?
The scientific study of celestial objects (stars, planets, galaxies) and phenomena that originate outside Earth's atmosphere.
Audio
Pronunciation
Definition
Meaning and Definition
The scientific study of celestial objects (stars, planets, galaxies) and phenomena that originate outside Earth's atmosphere.
The discipline involving observation, measurement, and theoretical understanding of the universe, its structure, and evolution.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The word is spelled and used identically.
Connotations
Identical academic/scientific connotations in both varieties.
Frequency
Similar frequency in academic and popular science contexts.
Grammar
How to Use “astronomy” in a Sentence
[subject] studies astronomyastronomy [verb: reveals/shows/demonstrates][adjective] astronomy (e.g., modern/amateur/radio astronomy)Vocabulary
Collocations
Examples
Examples of “astronomy” in a Sentence
verb
British English
- Not applicable as a verb. Use 'to study astronomy' or 'to observe the stars'.
American English
- Not applicable as a verb. Use 'to major in astronomy' or 'to do astronomy'.
adverb
British English
- Not applicable. No direct adverbial form.
American English
- Not applicable. No direct adverbial form.
adjective
British English
- He's an astronomy enthusiast.
- The astronomy lecture is on Thursday.
American English
- She works at an astronomy observatory.
- We bought a new astronomy telescope.
Usage
Meaning in Context
Business
Rare, except in contexts like 'astronomy software company' or 'astronomy tourism'.
Academic
Core term in physical sciences. Used in course titles, research papers, department names.
Everyday
Used when discussing hobbies (amateur astronomy), news about space discoveries, or general knowledge.
Technical
Precise term for the scientific discipline, with subfields (radio astronomy, optical astronomy).
Vocabulary
Synonyms of “astronomy”
Strong
Neutral
Weak
Vocabulary
Antonyms of “astronomy”
Watch out
Common Mistakes When Using “astronomy”
- Confusing 'astronomy' (science) with 'astrology' (horoscopes).
- Misspelling as 'astonomy' (missing the 'r').
- Using as a countable noun (e.g., 'an astronomy') - it's uncountable.
FAQ
Frequently Asked Questions
No. Astronomy is a natural science based on evidence and observation. Astrology is a belief system that suggests celestial bodies influence human affairs; it is not considered a science.
Astronomy is the broader study of celestial objects and phenomena. Astrophysics is a branch of astronomy that specifically applies the laws of physics to understand their properties and behaviour.
No. 'Astronomy' is an uncountable noun. You refer to 'the field of astronomy', 'the study of astronomy', or 'astronomy' in general.
A common starting point is learning to identify major constellations, planets, and using a pair of binoculars or a beginner's telescope to observe the Moon and brighter planets.
The scientific study of celestial objects (stars, planets, galaxies) and phenomena that originate outside Earth's atmosphere.
Astronomy is usually formal/academic/technical in register.
Astronomy: in British English it is pronounced /əˈstrɒnəmi/, and in American English it is pronounced /əˈstrɑːnəmi/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “It's not rocket science... well, actually it is astronomy (humorous play)”
- “written in the stars (idiom, but more astrological connotation)”
Learning
Memory Aids
Mnemonic
ASTRO (stars) + NOMY (law/study of) = study of the stars.
Conceptual Metaphor
The universe as a book to be read (observing/deciphering the cosmos).
Practice
Quiz
Which of the following is MOST closely related to the core scientific practice of astronomy?