- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
grimace
-
pay station
-
spring
-
cling
-
pistol grip
-
on a roll
-
confederate
-
steeple
-
unemployment benefit
-
propenonitrile
- 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)