- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
etymology
-
adjective
-
allegory
-
adrenocorticotropin
-
over
-
seize on
-
platitude
-
amount
-
ormer
-
adh
- 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)