Flash
Flash noun - A sudden and usually temporary growth of activity.
Understanding and flash are semantically related. In some cases you can use "Understanding" instead a noun "Flash".
Understanding
Understanding noun - An arrangement about action to be taken.
Flash and understanding are semantically related. Sometimes you can use "Flash" instead a noun "Understanding".
How words are described
Both words in one sentence
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As he says this, a flash of understanding crosses her face.
Source: Film / An Affair to Remember -
The Reverse-Flash, Big Bad of season 1, certainly looks human from a distance, but he's also constantly vibrating in an unstable manner, lets out inhuman screeches on several occasions, has glowing red eyes, and claims that his goals are beyond the understanding of normal humans.
Source: Ambiguously Human
Cite this Source
Understanding and Flash. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/flash/understanding
Flash & Understanding. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/flash/understanding>.
Understanding or Flash. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/flash/understanding.
Google Ngram Viewer shows how "flash" and "understanding" have occurred on timeline