FLASHING

To cause to shine briefly or intermittently.

"He flashed the light at the water, trying to see what made the noise."

To blink; to shine or illuminate intermittently.

"The light flashed on and off."

To be visible briefly.

"The scenery flashed by quickly."

A sudden blazing or bursting, as of fire or water.

(roofing) Components used to weatherproof or seal roof system edges at perimeters, penetrations, walls, expansion joints, valleys, drains and other places where the roof covering is interrupted or terminated.

The process of getting rid of gaps on shelves by bringing products from the back of the shelf to the front to create a 'fuller' shelf.