Definition of surveillance:
management, checkpoint, control, superintendence, stewardship, beat, lookout, direction, APB, charge, all-points bulletin, superintendency, agent provocateur, command, clue, clampdown, Amber alert, clean up, watch, headship, guidance, check, regulation.
- inspection (part of speech: noun)
- vigilance (part of speech: noun)
- "My Brilliant Career", Miles Franklin.
- "Red Masquerade", Louis Joseph Vance.
- "The Lost House", Richard Harding Davis.