Brightness
Brightness noun - The quality or state of having or giving off light.
Usage example: the brightness of the sunshine made me squint after an afternoon spent in a darkened movie theater
Flash and brightness are semantically related in light topic. In some cases you can use "Flash" instead a noun "Brightness".
Flash
Flash noun - A momentary brightness.
Brightness and flash are semantically related in light topic. Sometimes you can use "Brightness" instead a noun "Flash".
Mutual synonyms
Both words in one sentence
-
There are regulations regarding the brightness and flash patterns of fire alarm strobes, as well as the number of them installed in a building, in order to limit the possibility of seizures.
Source: Epileptic Flashing Lights -
Of course, the result is a flash bright enough that it causes Monk and Natalie, and possibly the audience, to squint their eyes for a few seconds to counteract the sudden brightness.
Source: Blinding Camera Flash -
According to The Other Wiki, a solar flare is a flash of brightness on the sun's surface that causes a sudden release of energy.
Source: Solar Flare Disaster
Cite this Source
Flash and Brightness. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/brightness/flash
Brightness & Flash. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/brightness/flash>.
Flash or Brightness. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/brightness/flash.
Google Ngram Viewer shows how "brightness" and "flash" have occurred on timeline