20
welkin(noun, blue, heaven, high, air)
17
azure(noun, blue, happiness, glory, atmosphere)
16
blue(noun, adjective, heaven, glory, paradise)
15
firmament(noun, blue, heaven, happiness, high)
15
atmosphere(noun, nature, blue, happiness, space)
15
heaven(noun, place, informal, wonderful, high)
14
heavens(noun, area, remove, blue, spread)
14
empyrean(noun, adjective, blue, heaven, happiness)
14
ether(noun, adjective, nature, air, heavenly)
13
air(noun, nature, high, draft, space)
13
stratosphere(noun, nature, draft, space, air)
12
distance(noun, range, space, void, interval)
11
pitch(verb, summit)
11
vault of heaven(noun, expression, idiom, blue, heaven)
9
vault(noun, take, blue, heaven, spring)
9
blue sky(expression, idiom, air)
9
biosphere
8
celestial sphere(noun, expression, idiom, blue, heaven)
8
culmination
6
paradise(noun, adjective, happiness, glory, heavenly)
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APASmart Define. (2015). sky thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sky/thesaurus/synonyms
ChicagoSmart Define. 2015. "sky thesaurus" https://smartdefine.org/sky/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, sky thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sky/thesaurus/synonyms>.
MLASmart Define. "sky thesaurus" 11 November 2015. Web. 22 September 2026. <https://smartdefine.org/sky/thesaurus/synonyms>