firmament

noun
🔊/ˈfɜːməmənt/
🔊/ˈfɜːrməmənt/
the firmament
[singular] (old use or literary)
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  1. the sky天空;苍穹
    • (figurative) a rising star in the literary firmament文坛上一颗冉冉升起的新星
    Topics Weatherc2
    Word OriginMiddle English: via Old French from Latin firmamentum, from firmare ‘fix, settle’.