| noun | 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” |
| verb | gleam or glow intermittently “The lights were flashing” |
| verb | emit or reflect light in a flickering manner “Does a constellation twinkle more brightly than a single star?” |
| adjective | shining intermittently with a sparkling light “twinkling stars” |
| flash | verb | expose or show briefly |
| flash | noun | a momentary brightness |
| flasher | noun | a light that flashes on and off; used as a signal or to send messages |
| blinker | noun | a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn |
| twinkle | noun | a rapid change in brightness; a brief spark or flash |
| twinkler | noun | an object that emits or reflects light in an intermittent flickering manner |
| scintillant | adjective | having brief brilliant points or flashes of light |
| scintillation | noun | the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight |
| scintilla | noun | a sparkling glittering particle |