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Synonyms

ephemera

American  
[ih-fem-er-uh] / ɪˈfɛm ər ə /

noun

plural

ephemeras, ephemerae
  1. a plural of ephemeron.

  2. an ephemerid.


ephemera British  
/ ɪˈfɛmərə /

noun

  1. a mayfly, esp one of the genus Ephemera

  2. something transitory or short-lived

  3. (functioning as plural) a class of collectable items not originally intended to last for more than a short time, such as tickets, posters, postcards, or labels

  4. a plural of ephemeron

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ephemera

1670–80; < Greek ephḗmera, neuter plural of ephḗmeros, taken as singular; see ephemeral

Explanation

Ephemera don't stick around for very long. You might enjoy such ephemera as sunsets and rainbows, things appearing only briefly, and so enjoyed all the more. In Latin, ephemera was a word for a fever that didn't last long. Today, ephemera is the plural form of ephemeron, which means "something impermanent or lasting only a short time." French historian Fernand Braudel referred to events as “the ephemera of history,” likening them to fireflies that light the dark for just a moment.

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Vocabulary lists containing ephemera

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.

The idea is to show ephemera that is beaten and weathered, says Worthington.

From Los Angeles Times • May 18, 2026

Contemporaries were convinced that his motivation for publishing Mansfield’s ephemera wasn’t so much reverence for her talent as greed for hard cash.

From The Wall Street Journal • Jan. 30, 2026

This is where the oils live, and the spices, and the half-forgotten jars of jam, olives, vinegars and other bits of kitchen ephemera that have been quietly waiting for their moment.

From Salon • Jan. 11, 2026

The upcoming exhibition at the Broad will feature 120 pieces of work, including sculpture, photography, painting, drawing and other ephemera, occupying the entire 10,000-square-foot ground floor.

From Los Angeles Times • Sep. 4, 2025

She is the gaudy, party-coloured ephemera of street commerce, and will disappear from view in a fortnight's time, to be seen no more until the opening summer of '53.

From Chambers's Edinburgh Journal, No. 448 Volume 18, New Series, July 31, 1852 by Chambers, William

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