B2 noun /sɜːˈveɪ.ləns/
surveillance
निगरानी
Meaning
Close observation, especially of a suspected spy or criminal; continuous watching of a place, person, or situation.
Example
Government agencies conduct surveillance on cyber threats.
सरकारी एजेंसियां साइबर खतरों पर निगरानी करती हैं।