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
  3. We know that, if this cataclysm let loose by an act of unutterable folly had not come upon the world, mankind would doubtless have reached ere long a zenith of wonderful achievement whose manifestations it is impossible to foreshadow. – The Wrack of the Storm by Maurice Maeterlinck