surveillance
/sərˈveɪləns/
noun
- The act of carefully watching a person, place, or activity, especially to detect or prevent crime or other problems.
- Security cameras provide constant surveillance in the parking lot.
- The police kept the building under surveillance for several days.
- The government's surveillance of citizens raised privacy concerns.
- The monitoring of a disease or condition to track its spread or changes over time.
- Health officials conduct surveillance of disease to identify new outbreaks quickly.
- The surveillance of disease in wildlife can warn us about potential pandemics.
- Global surveillance of influenza helps prepare for the next flu season.
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