Dictionary

noun

Definitions

1. (usually uncountable) The vault of the heavens, where the clouds, sun, moon, and stars can be seen; the heavens, the sky.

   Synonyms:liftwelkin

2. The field or sphere of an activity or interest.

   Example: the international fashion firmament

3. In the geocentric Ptolemaic system, the eighth celestial sphere which carried the fixed stars; (by extension) any celestial sphere.

4. (obsolete except biblical) The abode of God and the angels; heaven.