[{"Bold_text": "noun", "List Items": ["a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like:The suspects were under police surveillance.", "continuous observation of a place, person, group, or ongoing activity in order to gather information: electronic surveillance electronic surveillance.video cameras used for covert surveillance.", "attentive observation, as to oversee and direct someone or something:increased surveillance of patients with chronic liver disease."]}]