What does the word expanse mean?

Usage examples for expanse

  1. Vaguely I could discern the black bank of the trees and the lighter expanse of the moor, for the moon was behind the clouds. – The Hound of the Baskervilles by A. Conan Doyle
  2. Thence the whole expanse spread out before them, from the little pavilion where they dwelt to the distant village of Janville. – Fruitfulness Fecondite by Emile Zola
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