What is the meaning of Firmament?

The vault of the heavens, where the clouds, sun, moon, and stars can be seen; the heavens, the sky.

The field or sphere of an activity or interest.

In the geocentric Ptolemaic system, the eighth celestial sphere which carried the fixed stars; any celestial sphere.

The abode of God and the angels; heaven.

A piece of jewellery worn in a headdress with numerous gems resembling stars in the sky.

A basis or foundation; a support.

The act or process of making firm or strengthening.

firmament, heavens

firmament (vault or sphere of the heavens, seen as solid in older cosmologies; sky)

firmament

firmament

firmament, heavens

celestial sphere, heaven, sky

foundation

firmament

Source: wiktionary.org