wherein

American  

[wair-in, hwair-] / wɛərˈɪn, ʰwɛər- /

conjunction

1. in what or in which.

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adverb

1. in what way or respect?

wherein British  

/ wɛərˈɪn /

adverb

1. in what place or respect?

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pronoun

1. in which place, thing, etc

Etymology

Origin of wherein

First recorded in 1200–50, wherein is from the Middle English word wherin. See where, in

Example Sentences

See Examples For:

wherein

Rizzo expects what he calls an “80:20 world” wherein 80% of the AI tokens used by corporates are open weight or open source and 20% of them are frontier like Anthropic or OpenAI.

From MarketWatch ● Aug. 12, 2026

Hence, this gem of an anthology series, wherein real-life residents recount the stories that made them regionally famous or nationally infamous, while familiar actors and comedians recreate their stories.

From Salon ● Jul. 1, 2026

Northern Ireland has one of the strictest alcohol licensing systems in Europe, wherein anyone wanting to open a pub or off-sales must buy an existing licence from another business which has closed.

From BBC ● May 31, 2026

Merrilee Heifetz, agent to the Estate and to Butler while she was alive, agreed that the author never envisioned a world wherein she had the massive following she does today.

From Los Angeles Times ● Apr. 23, 2026

Mendeleyev was said to have been inspired by the card game known as solitaire in North America and patience elsewhere, wherein cards are arranged by suit horizontally and by number vertically.

From "A Short History of Nearly Everything" by Bill Bryson