| air(noun, sky, atmosphere, levity, gas) | |
| stratosphere(noun, heaven, sky, air, atmosphere) | |
| ammonia(noun, gas, chemical, gaseity) | |
| heaven(noun, heaven, sky, air, vault) | |
| gas(noun, gas, rarity, gaseity) | |
| ethoxyethane | |
| sky(noun, adjective, air, heavenly, atmosphere) | |
| acme(noun, heaven) | |
| aether | |
| diethyl ether(noun, expression, idiom) | |
| divinyl ether(noun, expression, idiom) | |
| vapor(noun, gas, gaseity) | |
| apex(noun, heaven) | |
| azure(noun, heaven) | |
| empyrean(noun, adjective, sky, heavenly, vault) | |
| firmament(noun, adjective, sky, heavenly, vault) | |
| medium | |
| nitrogen(noun, gas) | |
| quintessence | |
| vinyl ether(noun, expression, idiom) |
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| APA | Smart Define. (2015). ether thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ether/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ether thesaurus" https://smartdefine.org/ether/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, ether thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ether/thesaurus/synonyms>. |
| MLA | Smart Define. "ether thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/ether/thesaurus/synonyms> |