What does the word contour mean?

Usage examples for contour

  1. Dave tried to figure out the contour of the landscape beneath them. – Dave Dashaway and his Hydroplane by Roy Rockwood
  2. The view consisted of fields of grain ripening, which followed the contour of the plain, and which rustled merrily before the morning breeze that came laden with the chills of Usagara. – How I Found Livingstone by Sir Henry M. Stanley
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