1. (noun) flash
a sudden intense burst of radiant energy
2. (noun) flash
a momentary brightness
3. (noun) flash, flashing
a short vivid experience
"a flash of emotion swept over him"; "the flashings of pain were a warning"
4. (noun) flash
a sudden brilliant understanding
"he had a flash of intuition"
5. (noun) blink of an eye, flash, heartbeat, instant, jiffy, split second, trice, twinkling, wink, New York minute
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"
6. (noun) ostentation, fanfare, flash
a gaudy outward display
7. (noun) flare, flash
a burst of light used to communicate or illuminate
8. (noun) news bulletin, newsflash, flash, newsbreak
a short news announcement concerning some on-going news story
9. (noun) flash
a bright patch of color used for decoration or identification
"red flashes adorned the airplane"; "a flash sewn on his sleeve indicated the unit he belonged to"
10. (adj) flash, photoflash, flash lamp, flashgun, flashbulb, flash bulb
a lamp for providing momentary light to take a photograph
11. (verb) brassy, cheap, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy
tastelessly showy
"a flash car"; "a flashy ring"; "garish colors"; "a gaudy costume"; "loud sport shirts"; "a meretricious yet stylish book"; "tawdry ornaments"
12. (verb) flash, blink, wink, twinkle, winkle
gleam or glow intermittently
"The lights were flashing"
13. (verb) flash
appear briefly
"The headlines flashed on the screen"
14. (verb) flaunt, flash, show off, ostentate, swank
display proudly; act ostentatiously or pretentiously
"he showed off his new sports car"
15. (verb) flash
make known or cause to appear with great speed
"The latest intelligence is flashed to all command posts"
16. (verb) dart, dash, scoot, scud, flash, shoot
run or move very quickly or hastily
"She dashed into the yard"
17. (verb) flash
expose or show briefly
"he flashed a $100 bill"
18. (verb) flash
protect by covering with a thin sheet of metal
"flash the roof"
19. (verb) flash
emit a brief burst of light
"A shooting star flashed and was gone"
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Definition of 'FLASH' 
