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B1 · Intermediate Countable noun Medicine

n. a large medical machine that takes pictures of the inside of your body.

n. a diagnostic device, such as an MRI or CT machine, that uses radiation or ultrasound to produce internal images of a patient.

“The doctor sent him to the hospital for a brain scanner to check his injury.”

“The hospital recently invested in a state-of-the-art MRI scanner to improve the accuracy of early-stage cancer detections.”

A2 · Elementary Countable noun

n. a small device used in shops to read the price and information on a product.

n. an optical input device used to read and decode printed barcodes or QR codes, typically for retail or inventory purposes.

“The cashier used a handheld scanner to check the price of the milk.”

“Warehouse staff use wireless scanners to track inventory levels in real-time as shipments arrive at the loading dock.”

C1 · Advanced Countable noun Technical

n. a radio that automatically searches through different frequencies to find a signal.

n. a radio receiver that automatically tunes through a sequence of frequencies to monitor transmissions.

“He listened to the local emergency services on his radio scanner.”

“The hobbyist used a sophisticated scanner to monitor air traffic control frequencies from his home near the airport.”