What does the word folly mean?

Usage examples for folly

  1. Here wuz the beauty and dignity of the human form, onbroken by vanity and folly. – Samantha at the World's Fair by Marietta Holley
  2. Would yourself and your friend honour me with your company at Cray's Folly for a few days? – Bat Wing by Sax Rohmer
  3. Women say that there is no worse folly than to listen to His Grace of Wessex. – The Tangled Skein by Emmuska Orczy, Baroness Orczy