Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


plethora noun

Click to hear the UK pronunciation of this wordClick to hear the US pronunciation of this word/ˈpleθ.ər.ə//-ɚ.ə/ n [S] slightly formal

Definition

a very large amount of something, especially a larger amount than you need, want or can deal with
There's a plethora of books about the royal family.
The plethora of regulations is both contradictory and confusing.

(Definition of plethora noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

NEW “plethora” in other dictionaries

Word of the Day

be plain sailing

to be easy and without problems

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More