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Synonyms

whereby

American  
[wair-bahy, hwair-] / wɛərˈbaɪ, ʰwɛər- /

conjunction

  1. by what or by which; under the terms of which.

  2. Obsolete. by what? how?


whereby British  
/ wɛəˈbaɪ /

pronoun

  1. by or because of which

    the means whereby he took his life

"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

adverb

  1. archaic how? by what means?

    whereby does he recognize me?

"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 whereby

First recorded in 1150–1200, whereby is from the Middle English word wherby. See where, by

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.

But MLB offers what it describes as an “eat what you kill” model, whereby teams’ cuts depend on how much is brought in from sources including streaming subscriptions, individual distribution deals with linear TV providers and advertising.

From The Wall Street Journal

Obtaining a testimony from Andrew then meant the US legal authorities needed to formally ask their UK counterparts for help - in what's known as mutual legal assistance - whereby one country can ask for another's co-operation to compel overseas witnesses to testify.

From BBC

A rate case, in regulated utilities, is a formal process whereby a utility company seeks approval from a regulatory body to adjust its rates so it can recover prudently incurred costs and earn an authorized return.

From Barron's

Bitcoin and the greenback typically move in opposite directions, whereby Bitcoin behaves as a risk-on seesaw—essentially an anti-fiat asset against the world’s number one reserve currency.

From Barron's

As such, the so-called debasement trade —whereby investors retreat from assets such as the U.S. dollar due to concerns around fiat currencies—could propel Bitcoin.

From Barron's