- plural of phenomenon.
phenomena
Americannoun
noun
Usage
As with other plurals of Latin or Greek origin, like media and criteria, there is a tendency to use the plural phenomena as a singular ( This phenomena will not be seen again ), but such use occurs infrequently in edited writing. The plural form phenomenas, though occasionally seen, has even less currency.
Etymology
Origin of phenomena
First recorded in 1580–90 with spelling phænomena
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"These first materials that we have studied are like a baby step, or a prototype problem, along the way to more complex phenomena such as high-temperature superconductors and quantum magnets."
From Science Daily ● Oct. 10, 2026
Their effects have been observed through well established phenomena such as the Lamb shift, spontaneous emission, and the Casimir effect.
From Science Daily ● Oct. 3, 2026
The anonymous account, whose picture resembled a "Jujutsu Kaisen" character dubbed by Tsuda, combined images and seemingly AI-generated speech about urban legends, occult phenomena and conspiracy theories.
From Barron's ● Sep. 30, 2026
The same phenomena that we saw in the global financial crisis “are all in place now, again.”
From MarketWatch ● Sep. 1, 2026
If there was no rain at all, there were freakish, inexplicable phenomena like the epidemic of diarrhea or the bomb line that moved.
From "Catch-22" by Joseph Heller
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.