Concave
Firmament
Firmament noun - The expanse of air surrounding the earth.
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Synonyms for Firmament
Mutual synonyms
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Firmament and Concave. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/concave/firmament
Concave & Firmament. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/concave/firmament>.
Firmament or Concave. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/concave/firmament.
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