What does the word foreshadow mean?

Usage examples for foreshadow

  1. Volcanic materials, now poured out, foreshadow the incoming of the great mountain- building epoch of the Tertiary Era. – The Birth-Time of the World and Other Scientific Essays by J. (John) Joly
  2. The exclamation seemed to embody the general wish, and to foreshadow a speedy conclusion. – Project Gutenberg History of The Netherlands, 1555-1623, Complete by John Lothrop Motley
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