12 entries under blue topic. ×
| empyrean(noun, heaven, heavens, Elysium) | |
| heavens | |
| firmament(noun, heaven, heavens, Elysium) | |
| vault of heaven(noun, expression, idiom, heaven) | |
| welkin(noun, heavens) | |
| sky(noun, heaven, atmosphere, heavens) | |
| upper atmosphere(expression, heaven, heavens, Elysium) | |
| wild blue yonder(expression, idiom, heaven, heavens) | |
| atmosphere | |
| azure(heaven, heavens, Elysium, zion) | |
| lid | |
| vault |
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| APA | Smart Define. (2015). celestial sphere thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/celestial_sphere/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "celestial sphere thesaurus" https://smartdefine.org/celestial_sphere/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, celestial sphere thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/celestial_sphere/thesaurus/synonyms>. |
| MLA | Smart Define. "celestial sphere thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/celestial_sphere/thesaurus/synonyms> |