be vigilant

Examples (10)

• We must always be vigilant against cyber threats.
• The security guards were vigilant throughout the night.
• It's crucial to be vigilant when driving in bad weather.
• She is always vigilant about her children's safety.
• Despite the calm, we need to be vigilant for any changes.
• The government promised to be more vigilant in monitoring food safety.
• To avoid mistakes, one should be vigilant during the final review.
• They have been vigilant since the incident occurred.
• Please be vigilant and report any suspicious activity.
• A good leader must be vigilant for potential problems.