Geo-fencing is a technology that uses GPS or RFID to create a virtual boundary around a specific geographic area.

We use geo-fencing to restrict access to certain areas.

The app geo-fenced the user's location to provide personalized recommendations.

The geo-fences around the building ensure the security of the premises.

The security system geo-fences the restricted area to prevent unauthorized access.

The geo-fence was set up to restrict access to the restricted area.

They geofence their property to keep intruders out.