- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
acacia auriculiformis
-
indefinitely
-
wholesome
-
gak
-
boring
-
can
-
acidulate
-
anteater
-
dyadic
-
relative
- 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)