be alert
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
MLB rules stipulate that batters must be alert and engaged with the pitcher when the clock reaches eight seconds or else they will receive a strike.
From The Wall Street Journal ● Jul. 23, 2026
Security Minister Dan Jarvis said people should be "alert and vigilant" but not "alarmed".
From BBC ● Apr. 30, 2026
But policymakers will be alert to signs that the energy shock is spilling over.
From The Wall Street Journal ● Apr. 24, 2026
Smout urged everyone to be alert to the signs and symptoms of meningococcal meningitis and septicaemia, which can include a fever, headache, rapid breathing, drowsiness, shivering, vomiting and cold hands and feet.
From BBC ● Apr. 17, 2026
After all, he knows his name has been in the papers—he must be alert to the possibility of people trying to get stories on him or information from him.
From "The Girl on the Train" by Paula Hawkins
