12
air(noun, sky, atmosphere, levity, gas)
8
stratosphere(noun, heaven, sky, air, atmosphere)
7
ammonia(noun, gas, chemical, gaseity)
7
heaven(noun, heaven, sky, air, vault)
6
gas(noun, gas, rarity, gaseity)
5
ethoxyethane
5
sky(noun, adjective, air, heavenly, atmosphere)
5
acme(noun, heaven)
5
aether
5
diethyl ether(noun, expression, idiom)
5
divinyl ether(noun, expression, idiom)
5
vapor(noun, gas, gaseity)
4
apex(noun, heaven)
4
azure(noun, heaven)
4
empyrean(noun, adjective, sky, heavenly, vault)
4
firmament(noun, adjective, sky, heavenly, vault)
4
medium
4
nitrogen(noun, gas)
4
quintessence
4
vinyl ether(noun, expression, idiom)
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APASmart Define. (2015). ether thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ether/thesaurus/synonyms
ChicagoSmart Define. 2015. "ether thesaurus" https://smartdefine.org/ether/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, ether thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ether/thesaurus/synonyms>.
MLASmart Define. "ether thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/ether/thesaurus/synonyms>