The atmosphere, airspace, and the (wide) blue yonder are all synonyms for sky. Ground and earth are these antonyms of sky. And here are another 16 synonyms for sky.
Sky Synonyms
- Airspace
- The (wide) blue yonder
- The atmosphere
- The azure
- The blue
- The empyrean
- The ether
- The firmament
- The heavens
- The skies
- The stratosphere
- The upper regions
- The vault of heaven
- The welkin
- The sphere