where·​by | \ (h)wer-ˈbī How to pronounce whereby (audio) , (ˌ)(h)wər- \

Definition of whereby

 (Entry 1 of 2)

: by, through, or in accordance with which



Definition of whereby (Entry 2 of 2)

: by what : how

Examples of whereby in a Sentence

Recent Examples on the Web: Adverb Thus, the Cruz amendment creates almost a textbook scenario of wide-scale adverse selection—whereby riskier and more expensive patients wind up concentrated in risk pools—and entirely undermines any tools for managing that adverse selection. Vann R. Newkirk Ii, The Atlantic, "The Cruz Plan Would Splinter Health Insurance Markets," 14 July 2017 According to Bloomberg, United is set to unveil a system whereby the airline would offer rewards to passengers who are willing to give up their seat on an overbooked flight days in advance. Lucinda Shen, Fortune, "This Is United’s New Plan to Deal With Overbooked Flights," 12 July 2017 This has become a mechanism whereby these people state their identities. Marc Fisher, David Nakamura, Alaska Dispatch News, "Is Donald Trump Jr.’s ‘I love it’ email a smoking gun or a distraction?," 12 July 2017 Ever since the election, there’s been a lot of overreading of culture whereby everything is being seen as a direct one-to-one parable. Daniel D’addario, Time, "Game of Thrones Creators David Benioff and D.B. Weiss: ‘We Know What Happens in Each Scene’ of Season 8," 11 July 2017 The future of the Veneto banks had hung in the balance over the past two years since the ECB uncovered a capital hole caused by a spike in bad loans and a mis-selling scandal whereby the banks' customers were sold shares in exchange for loans. Reuters, Fortune, "Italy Is Bailing Out 2 Failing Banks for Up To $19 Billion," 26 June 2017 Muse also used a Facebook Live feature that allowed them to schedule their live video in advance to create a virtual lobby whereby thousands of fans could congregate and converse before receiving a prompt for the live feed. Andy Gensler, Billboard, "Muse Draws Over 1 Million Views For Facebook Live Austin Concert," 16 June 2017 In nature, there is something called the Law of Return whereby the things plants develop from the soil's nutrients drop off and decay and go back into the soil to start the cycle again. Jeff Lowenfels, Alaska Dispatch News, "Be your own bees, Alaska gardeners," 30 June 2017 Brexit, whereby Britain fails to strike a deal with the remaining 27 nations of the EU before the formal departure date of March 2019. Pan Pylas And Martin Crutsinger, Milwaukee Journal Sentinel, "Yellen: Banking reforms should avert future financial crisis," 27 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'whereby.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of whereby


13th century, in the meaning defined above


14th century, in the meaning defined above

Keep scrolling for more

Learn More about whereby

Time Traveler for whereby

Time Traveler

The first known use of whereby was in the 13th century

See more words from the same century

Statistics for whereby

Last Updated

27 Jan 2020

Cite this Entry

“Whereby.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/whereby. Accessed 26 Feb. 2020.

Keep scrolling for more

More Definitions for whereby


How to pronounce whereby (audio)

English Language Learners Definition of whereby

: by which : according to which


where·​by | \ hwer-ˈbī How to pronounce whereby (audio) , wer- \

Kids Definition of whereby

: by or through which We made a deal whereby we each took turns.

Keep scrolling for more

More from Merriam-Webster on whereby

Rhyming Dictionary: Words that rhyme with whereby

Spanish Central: Translation of whereby

Nglish: Translation of whereby for Spanish Speakers

Britannica English: Translation of whereby for Arabic Speakers

Comments on whereby

What made you want to look up whereby? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!