Words similar to alert

Example sentences for: alert

How can you use “alert” in a sentence? Here are some example sentences to help you improve your vocabulary:

Amtrak and its Commuter Division try very hard to raise Safety awareness of its Passengers by using simple, short Safety Slogans such as 'Walk, Don't Run,' 'Watch the Gap' or 'Stay Alert, Stay Alive,' etc., etc.
But NEADS did not know where to send the alert fighter aircraft, and the officer directing the fighters pressed for more information:"I don't know where I'm scrambling these guys to.
When the SARS epidemic showed the first signs of waning, the World Health Organization proclaimed that the turnaround was a testament to the efficient response of health systems worldwide and justified its decisive action in issuing a global alert.
The author did not indicate if the three uninjured dogs of the nine were the 'bravest', 'least brave' or the most 'alert', 'agile' or 'lucky'.
It appears that the heightened sense of alert at the national level played no role in Ressam's detention.