- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
unanimity
-
mustard
-
prim
-
adiabatic process
-
indignation
-
whale
-
exhilarating
-
confidence man
-
achromatous
-
anticipated
- Hide translation
surveillance
surveillance /sɝˈveɪləns/
noun
-
(
)
Close observation of a person or group (usually by the police)
(
surveillance
)
close observation of a person or group (usually by the police)