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plethora

American  
[pleth-er-uh] / ˈplɛθ ər ə /

noun

plethoras plural
  1. overabundance; excess.

    His crisis brought him a plethora of advice and an almost complete lack of assistance.

  2. a large quantity or wide array; a lot.

    The co-op program offers a plethora of advantages for students.

    Visitors are drawn to the main beach, where a plethora of watersports can be enjoyed.

  3. Pathology Archaic. a morbid condition due to excess of red corpuscles in the blood or increase in the quantity of blood.


plethora British  
/ ˈplɛθərə, plɛˈθɒrɪk /

noun

  1. superfluity or excess; overabundance

  2. obsolete pathol a condition caused by dilation of superficial blood vessels, characterized esp by a reddish face

"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

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Etymology

Origin of plethora

First recorded in 1535–45; from New Latin, from Greek plēthṓra “fullness,” from plḗthein “to fill, be full”; see also complete ( def. ), full 1

Explanation

Plethora means an abundance or excess of something. If you have 15 different people who want to take you on a date, you have a plethora of romantic possibilities. Plethora comes from the Greek for "fullness." Although it was originally used only in old-fashioned medicine to describe the condition of having too much blood, we use it to talk about any excessive supply. If you run a theater and all the seats are taken, that's a full house. But if the seats are full and people are standing in the aisles, you have a plethora of patrons. The stress is on the first syllable: PLETH-uh-ruh.

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Vocabulary lists containing plethora

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.

There’s a plethora of modern and contemporary examples on view that reflect the far-flung inspirations and styles that artists have embraced when creating tarot cards.

From The Wall Street Journal • Jun. 26, 2026

Still, it only brushes the surface of an exhibition that seamlessly draws upon a plethora of works crafted across U.S. history.

From Los Angeles Times • Jun. 10, 2026

While the broad move toward cord cutting and a la carte programming has put significant pressure on pay-TV providers, it has also created a plethora of unforeseen problems for streaming services.

From MarketWatch • May 28, 2026

They have a plethora of choices, from apps like Taobao and JD.com to hours-long sales livestreams on the Instagram-like Xiaohongshu and Douyin, China's version of TikTok.

From Barron's • May 27, 2026

Colin and Hassan followed her to a six-foot-tall obelisk—a kind of miniature Washington Monument—before which lay a plethora of not-new pink silk roses.

From "An Abundance of Katherines" by John Green

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