Firmament
/ˈfɜrmə/
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Definition
(noun) The vault of the heavens, where the clouds, sun, moon, and stars can be seen; the heavens, the sky.
Sentence Examples
May the firmament not fall upon him.
The heavens declare the glory of God; and the firmament sheweth his handywork.
CEFR Practice Quiz
In ancient poetry, the stars were often described as bright jewels fixed in the heavenly ____ above.