What does the word surveillance mean?

Usage examples for surveillance

  1. The eccentric Warden seems to have conceived a great fear of an Anarchist conspiracy: special orders have been issued, placing the trio under extraordinary surveillance. – Prison Memoirs of an Anarchist by Alexander Berkman
  2. In neither Europe nor America are women subject to the surveillance of the East; they are not bought and sold in the markets. – Woman: Man's Equal by Thomas Webster
  3. If they could only be made to believe that she was dead, that and that alone would free her at once and forever from their surveillance. – Who? by Elizabeth Kent