The price tag displays a small pound sign before the number to indicate the amount is in sterling.

The plus sign on the calculator makes it easy to perform quick additions.

The lawyer circled the section sign next to each cited statute to make cross-referencing easier.

During the neurological exam, the patient reported Lhermitte's sign when she flexed her neck, describing an electric shock running down her spine into her arms.

During the neurological exam, the clinician observed a Lhermitte sign when the patient flexed his neck, describing electric shock-like sensations down the spine and into the limbs.

The script checks for a number sign at the start of each line to identify commented-out lines.

The old barber's sign — a painted pole with two wash-balls — still marked the corner where generations had come for shaves.

Please include the hash sign before the topic to create a proper tag.

In informal notes, some writers use the equals sign as an alternative notation.

She flashed a V sign at the crowd after winning the match.