star
star
/stɑːr/
A massive, luminous sphere of plasma held together by its own gravity, producing light and heat through nuclear fusion.
The fundamental building block of galaxies, providing light and energy. Can also refer to a famous person (a 'movie star').
The story behind the word. The word 'star' is an ancient one, tracing its roots back to the Proto-Indo-European word `h₂stḗr`. This root is the ancestor of many words for 'star' across different languages, including Latin `stella` (from which we get 'stellar' and 'constellation') and Greek `astēr` (giving us 'astronomy' and 'astronaut'). It's a testament to humanity's enduring fascination with the luminous points in the night sky.
Word relationships
- sun: Specifically refers to the star at the center of our solar system.
Commonly confused with
- planet: A star generates its own light and heat through fusion, while a planet reflects light from a star and does not undergo fusion.
Word family
- stellar (adjective): relating to a star or stars; outstanding.
- starlight (noun): the light emitted by stars.
Collocations
- bright star
- shooting star
- binary star
- north star
- supergiant star
Idioms & expressions
- reach for the stars
- thank one's lucky stars
- star-crossed lovers
- see stars
Example sentences
- "Our Sun is a medium-sized star, providing the light and warmth necessary for life on Earth." Basic astronomy.
- "On a clear night, away from city lights, countless stars twinkle in the vast expanse of the sky." Describing the night sky.
Memory hook
A STAR is a shining, hot ball, far away. STAR = shining ball.
When not to use
Do not use 'star' to refer to planets or other non-luminous celestial bodies, unless in a metaphorical sense (e.g., 'a shining star in her field').
Fun facts
- The closest star to Earth, besides the Sun, is Proxima Centauri.
- Stars are born in nebulae, vast clouds of gas and dust.
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