surveillance
n. நுணங்கு மேற்பார்வை, கவனக் கண்காணிப்பு.
Sur*veil"lance, n. Etym: [F., fr. surveiller to watch over; sur over + veiller to watch, L. vigilare. See Sur-, and Vigil.] Defn: Oversight; watch; inspection; supervision. That sort of surveillance of which . . . the young have accused the old. Sir W. Scott.