surveillance
noun
[ səˈveɪl(ə)ns ]
• close observation, especially of a suspected spy or criminal.
• "he found himself put under surveillance by British military intelligence"
Similar:
observation,
scrutiny,
watch,
view,
inspection,
monitoring,
supervision,
superintendence,
spying,
espionage,
intelligence,
undercover work,
infiltration,
reconnaissance,
bugging,
wiretapping,
phone tapping,
recon,
Origin:
early 19th century: from French, from sur- ‘over’ + veiller ‘watch’ (from Latin vigilare ‘keep watch’).
