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bellwether

American  
[bel-weth-er] / ˈbɛlˌwɛð ər /

noun

  1. a wether or other male sheep that leads the flock, usually bearing a bell.

  2. a person or thing that assumes the leadership or forefront, as of a profession or industry.

    Paris is a bellwether of the fashion industry.

    Synonyms:
    trailblazer, front runner, pacesetter, leader
  3. a person or thing that shows the existence or direction of a trend; index.

  4. a person who leads a mob, mutiny, conspiracy, or the like; ringleader.


bellwether British  
/ ˈbɛlˌwɛðə /

noun

  1. a sheep that leads the herd, often bearing a bell

  2. a leader, esp one followed unquestioningly

"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 bellwether

late Middle English word dating back to 1400–50; bell 1, wether

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.

First Solar, an industry bellwether because of its size and status as the largest U.S. manufacturer, has been having demand problems, too.

From Barron's

First Solar, an industry bellwether because of its size and status as the largest U.S. manufacturer, has been having demand problems, too.

From Barron's

Not even another strong earnings report from industry bellwether Nvidia was enough to quell the market jitters.

From The Wall Street Journal

That is particularly true for Nvidia, the industry’s bellwether, and a driver of the markets’ rebound from April’s tariff turmoil.

From The Wall Street Journal

Considered a main bellwether for the AI phenomenon, the recurring question for Nvidia is whether the boom will continue to accelerate as the technology takes over more corners of the broader economy.

From Barron's