The crossword solution for the term 'Nanny (Surveillance Devices)' is CAMS, which stands for Closed-Circuit Television (CCTV) cameras. CCTV cameras are used in surveillance systems to monitor and record activity in a given area. They are often used in homes, businesses, and public spaces to provide security and safety. Nanny cams are a type of CCTV camera that are specifically designed to be used in homes to monitor the activities of children and caregivers.