alertness

Noun	1.	alertness - the process of paying close and continuous attention vigilance, watchfulness attention - the faculty or power of mental concentration; "keeping track of all the details requires your complete attention" jealousy - zealous vigilance; "cherish their official political freedom with fierce jealousy"-Paul Blanshard
	2.	alertness - a state of readiness to respond; "alerting was indicated by the desynchronization of the EEG" alerting arousal - a state of heightened physiological activity
	3.	alertness - lively attentiveness on the qui vive attentiveness - the trait of being observant and paying attention

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