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thereunder

American  
[thair-uhn-der] / ˌðɛərˈʌn dər /

adverb

  1. under or beneath that.

  2. under the authority of or in accordance with that.


thereunder British  
/ ˌðɛərˈʌndə /

adverb

  1. (in documents, etc) below that or it; subsequently in that; thereafter

  2. under the terms or authority of that

"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 thereunder

before 900; Middle English therunder, Old English thǣrunder. See there, under

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.

“Apple, despite knowing its obligations thereunder, thwarted the injunction’s goals, and continued its anticompetitive conduct solely to maintain its revenue stream.”

From Los Angeles Times • Apr. 30, 2025

Thus, Riley Keough would become a co-trustee alongside her grandmother "with respect to the trust and all trust created thereunder."

From Salon • Feb. 1, 2023

Often he walked into beauty parlors, peeped under hair dryers, introduced himself to the surprised clients thereunder, explaining: "I need your vote."

From Time Magazine Archive

I found your article excellent in that it represented the American Revolution as a rebellion, not especially against the English Crown, rather against certain conditions then prevailing thereunder.

From Time Magazine Archive

Hoskuld was soon in his householding blessed with friends, for that many supports stood thereunder, both kinsmen and friends whom Koll had gathered round him.

From Laxdæla Saga Translated from the Icelandic by Press, Muriel A.C.