surveil
— Verb
– English
~ keep under surveillance; "The police had been following him for weeks but they could not prove his involvement in the bombing"
surveillance
— Noun
– English
~ close observation of a person or group (usually by the police)
surveillance of disease
— Noun
– English
~ the ongoing systematic collection and analysis of data about an infectious disease that can lead to action being taken to control or prevent the disease
survey
— Noun
– English
~ a detailed critical inspection
survey
— Noun
– English
~ the act of looking or seeing or observing; "he tried to get a better view of it"; "his survey of the battlefield was limited"