(p. 974) satarka careful, alert, watchful, cautious. সতর্ক করা v. to warn, to caution. সতর্ক থাকা v. to be on the alert or one's guard, to be careful or cautious. সতর্ক দৃষ্টি রাখা v. to keep a careful watch or a watchful eye on. সতর্কীকরণ n. carefulness, alertness, cautiousness; watchfulness, vigilance. 20)