RichThesaurus
the stratosphere
the stratosphere
synonyms
the upper regions
the welkin
the heavens
the sphere
the azure
the blue
the ether
the firmament
the vault of heaven
the upper atmosphere
the (wide) blue yonder
the skies
the sky
the empyrean
the wide blue yonder
the vault (of heaven)
heaven
sky
the celestial sphere
empyrean
airspace
the atmosphere
the stratosphere
definitions