noun

• 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.
• The blinking of a light source, such as a light bulb or computer's cursor.
• The exposing of one's naked body, or part of it, in public briefly (the action of the verb to flash).
• (jewelry) The use of rhodium plating to temporarily enhance a ring's durability and shine.