bed·​rock | \ ˈbed-ˈräk How to pronounce bedrock (audio) , -ˌräk \

Definition of bedrock

 (Entry 1 of 2)

1 : the solid rock underlying unconsolidated surface materials (such as soil)
2a : lowest point
b : basis


bed·​rock | \ ˈbed-ˌräk How to pronounce bedrock (audio) \

Definition of bedrock (Entry 2 of 2)

: solidly fundamental, basic, or reliable traditional bedrock values a bedrock constituency

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Examples of bedrock in a Sentence

Noun They dug down for 10 feet before they hit bedrock. His religious beliefs are the bedrock on which his life is based.
Recent Examples on the Web: Noun When the ice melted, the water flowed into fractures in the area’s limestone bedrock. Talia Soglin,, 21 July 2021 That these last two achievements are even worth noting is a commentary on the corruption and extremism of the 45th President's administration and continuing efforts to tear the fundamental political bedrock of the country apart. Stephen Collinson, CNN, 21 July 2021 This principle, which physicists call locality, was long regarded as a bedrock assumption about the laws of physics. Quanta Magazine, 20 July 2021 But brown, brook and other trout in the state's southeast streams are fairly safe from this threat, because streams there are largely supplied by groundwater sifting upward through limestone bedrock. Star Tribune, 8 July 2021 Some experts noted it could have been triggered by an unidentified event or one difficult to anticipate, such as a sinkhole in the underlying limestone bedrock. Kyle Bagenstose, USA TODAY, 2 July 2021 The question this raises in Hine’s mind is whether subsidence was resulting from the potential use of fill when the buildable land of the island was expanded and whether the piles were actually anchored in bedrock. Alissa Walker, Curbed, 29 June 2021 Drilling through bedrock and soils beneath the straits would violate numerous environmental protection laws, said David Holtz of Oil and Water Don't Mix, an anti-Line 5 coalition. John Flesher, Detroit Free Press, 24 June 2021 Political forces in both major parties have made moves to expand action against Big Tech beyond the bedrock standard of whether a merger harms consumers. Wendy Lee, Los Angeles Times, 30 June 2021 Recent Examples on the Web: Adjective Now, even the bedrock idea of self-determination is endangered in Libya, with foreign powers — not just Libyans — seeking to control the country’s fate. Washington Post, 25 Feb. 2021 People with disabilities know bedrock truths most of us ignore. Paul Daugherty,, 19 May 2020 The American Prairie Reserve’s partial retreat from conservation’s traditional separation of humans and nature—a bedrock principle of conservation for most of the past century—is not just an accommodation. Christopher Preston, The Atlantic, 9 Apr. 2020 One of our nation’s bedrock environmental laws, NEPA mandates inclusion of the public’s voice and environmental reviews in government decision making. Wes Siler, Outside Online, 26 Mar. 2020 Objective news reporting is built on two bedrock principles: report the truth, and don’t pick sides. Gilad Edelman, Wired, 10 Mar. 2020 Few leagues are rushing to copy those bedrock elements of M.L.S., and that raises the question of whether such an unusually structured league can really hope to join the best in the world, particularly financially. New York Times, 28 Feb. 2020 But the use of religious freedom as a tool to enable discrimination has become a bedrock principle of the modern conservative movement—and of the Trump Administration. Jeffrey Toobin, The New Yorker, 19 Sep. 2019 In fact, Profs. Fama and French found that the same goes for an even more bedrock belief of stock-market investors: the notion that equities will outperform riskless T-bills for those who hold them long enough. Mark Hulbert, WSJ, 4 Nov. 2018

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

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First Known Use of bedrock


1839, in the meaning defined at sense 1


1873, in the meaning defined above

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Time Traveler for bedrock

Time Traveler

The first known use of bedrock was in 1839

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Dictionary Entries Near bedrock



bedrock valley

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Statistics for bedrock

Last Updated

30 Jul 2021

Cite this Entry

“Bedrock.” Dictionary, Merriam-Webster, Accessed 31 Jul. 2021.

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More Definitions for bedrock



English Language Learners Definition of bedrock

: the solid rock that lies under the surface of the ground
: a strong idea, principle, or fact that supports something


bed·​rock | \ ˈbed-ˌräk How to pronounce bedrock (audio) \

Kids Definition of bedrock

: the solid rock found under surface materials (as soil)

More from Merriam-Webster on bedrock

Nglish: Translation of bedrock for Spanish Speakers

Britannica English: Translation of bedrock for Arabic Speakers Encyclopedia article about bedrock


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