What context can I use each word in?
Learn when and how to use these words with these examples!
firmament
Example
The stars twinkled brightly in the firmament above. [firmament: noun]
Example
The ancient Greeks believed that the gods lived in the firmament above the earth. [firmament: noun]
sky
Example
The sky turned dark as the storm clouds rolled in. [sky: noun]
Example
The sun was setting over the horizon, painting the sky with shades of orange and pink. [sky: noun]
Good things to know
Which word is more common?
Sky is more commonly used than firmament in everyday language. Sky is a versatile and common term that covers a wide range of contexts, while firmament is less common and has a more specific and formal usage.
What’s the difference in the tone of formality between firmament and sky?
Firmament is typically associated with a formal or poetic tone, while sky is more versatile and can be employed in various formality levels, allowing it to be used in both formal and informal contexts.