- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
fortified
-
ryukyu islands
-
flexion
-
flag
-
abstractionism
-
hebrew
-
adipic acid
-
vanity
-
helenium
-
plow horse
- 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)