What does the word exposition mean?

Usage examples for exposition

  1. He had come to represent Italy at the exposition. – My First Years As A Frenchwoman, 1876-1879 by Mary King Waddington
  2. Much that is required to make this hypothesis complete must stand over until, at the close of the second volume of the Principles of Psychology, I have space for a full exposition. – Essays: Scientific, Political, & Speculative, Vol. I by Herbert Spencer
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