flash

A device that produces a short flash of light to help illuminate a scene, mostly for night-time or indoors photography.

A sudden, short, temporary burst of light.

A very short amount of time.

A flashlight; an electric torch.

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."

Expensive-looking and demanding attention; stylish; showy.

(of a person) Having plenty of ready money.

(of a person) Liable to show off expensive possessions or money.