Meaning of ON THE ALERT in English

Use in sentences of ON THE ALERT

Biting Cold Tightens Grip: Red Alert for North India as Delhi Flights Face Delays
Playing action video games for an hour significantly boosts alertness: Study
Uttarakhand Braces for Heavy Rain, Snowfall, and Landslides: 24-Hour Alert Issued
Nuh Shobha Yatra Triggers High Alert: Educational Institutions and Banks Closed
Police are on heightened alert as Bengaluru prepares for New Year Eve.
Japan Earthquake Triggers Tsunami Alerts Across Region, Causing Damage and Evacuations
Israeli Embassy Staffer 'Attacked' in Beijing Amid Gaza Conflict, Security Alert Issued
Himachal Pradesh Braces for Extended Heavy Rainfall and Landslide Threats: IMD Issues 'Yellow' Alert
Red alerts for Delhi, Punjab, Haryana, Chandigarh, and Uttar Pradesh are issued this week due to severe cold and fog.
Child sexual abuse
Microsoft Sounds Alarm: Russia-Backed Hackers Target Organizations After Email Breach
Signal Trading Bot Development by Hivelance
Another "cold day" arrives in Delhi. As fog descends upon the capital, review the seven-day weather forecast.
Leopard Sighted in South Delhi's Sainik Farm Area Sparks Security Concerns
Bomb Threats Instigate Panic in Bengaluru, No Explosives Found Yet