Definition for Firmament (-s, -'s)

firmament (-s, -'s), n. [OFr < L. firmamentum from firmare, to strengthen.]

  1. Heavens where God dwells; [fig.] immortal, sacred, everlasting place.
  2. Arch of heaven overhead, where the clouds and stars appear.
  3. Expanse; wide extent; celestial sphere.

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