1. moving around an area regularly to watch for problems or provide security
Usage: present participle of patrol

1. the act of moving around an area regularly to watch for problems or provide security
Usage: gerund form

Examples

• The security guards were patrolling the parking lot all night.
• Police officers spend much of their time patrolling neighborhoods.
• The soldiers were patrolling the border to prevent illegal crossings.
• Park rangers are patrolling the trails to ensure visitor safety.
• Regular patrolling of the area helped reduce crime rates.
• The coast guard began patrolling the waters after the storm.
• Patrolling the school hallways is part of the principal’s daily routine.