- watchfulness, vigilance, alertness - the process of paying close and continuous attention
--1 is a kind of attention
--1 has particulars: jealousy - alertness, alerting - a state of readiness to respond; "alerting was indicated by the desynchronization of the EEG"
--2 is a kind of arousal
- alertness, on the qui vive - lively attentiveness
--3 is a kind of attentiveness