to look at something carefully, with the eyes or with a machine, in order to get information
She anxiously scanned the faces of the men leaving the train.
Doug scanned the horizon for any sign of the boat.
Doctors recommended a thorough body scan to detect any potential health issues.
The technician used a barcode scanner to quickly scan and process items at the checkout.
Satellite imagery allows scientists to scan large areas of the Earth's surface for environmental monitoring.
Researchers scanned historical documents to create digital archives for preservation.