Definition of Flash

Verb: flash flash

Gleam or glow intermittently
"The lights were flashing";
- blink, wink, twinkle, winkle
Appear briefly
"The headlines flashed on the screen"
Display proudly; act ostentatiously or pretentiously
"he flashed his new sports car";
- flaunt, show off, ostentate [archaic], swank, showboat [N. Amer], parade
Make known or cause to appear with great speed
"The latest intelligence is flashed to all command posts"
Run or move very quickly or hastily
"She flashed into the yard";
- dart, dash, scoot, scud, shoot, whip
Expose or show briefly
"he flashed a $100 bill"
Protect by covering with a thin sheet of metal
"flash the roof"
Emit a brief burst of light
"A shooting star flashed and was gone"
Briefly expose one's naked body or genitals in public

Noun: flash flash

A sudden intense burst of radiant energy
A momentary brightness
A short vivid experience
"a flash of emotion swept over him";
- flashing
A sudden brilliant understanding
"he had a flash of intuition"
A very short time (as the time it takes the eye to blink or the heart to beat)
"if I had the chance I'd do it in a flash";
- blink of an eye, heartbeat, instant, jiffy, split second, trice, twinkling, wink, New York minute [US], jiff
A gaudy outward display
- ostentation, fanfare
A burst of light used to communicate or illuminate
- flare
A short news announcement concerning some on-going news story
- news bulletin, newsflash, newsbreak
A bright patch of colour used for decoration or identification
"red flashes adorned the aeroplane"; "a flash sewn on his sleeve indicated the unit he belonged to"
A lamp for providing momentary light to take a photograph
- photoflash, flash lamp, flashgun, flashbulb, flash bulb

Adjective: flash (flasher,flashest) flash

Tastelessly showy
"a flash car";
- brassy, cheap, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy