What context can I use each word in?
Learn when and how to use these words with these examples!
brightness
Example
The brightness of the sun made it difficult to see.
Example
She turned up the brightness on her phone screen.
luminosity
Example
The luminosity of the stars in the night sky was breathtaking.
Example
Scientists use special instruments to measure the luminosity of different light sources.
Good things to know
Which word is more common?
Brightness is more commonly used in everyday language, while luminosity is more specialized and often used in scientific or technical contexts.
Whatโs the difference in the tone of formality between brightness and luminosity?
While brightness is versatile and can be used in both formal and informal contexts, luminosity is more technical and formal in nature, typically used in scientific or academic discussions.
