boulder

noun

boul·​der ˈbōl-dər How to pronounce boulder (audio)
variants or less commonly bowlder
: a detached and rounded or much-worn mass of rock
bouldered adjective
bouldery adjective

Examples of boulder in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Similarly, instead of modifying the landscape, McGuire integrated it into the pad’s design—a bridged walkway passes through two massive granite boulders, leading the way to the front door, and the office/guest room features an integrated desk, with a boulder protruding through a wall of glass. Abby Montanez, Robb Report, 10 Mar. 2025 How do boulders express their autobiographies to geologists? Ray Mark Rinaldi, The Denver Post, 10 Mar. 2025 Inside the Jardin des Tuileries and in time to Robert Wilson’s choreography, models walked beneath a prehistoric flying bird and enormous boulders descended from the ceiling, over hot lava projected onto the ground, and around icebergs emerging from the floor. Arden Fanning Andrews, Vogue, 4 Mar. 2025 Huge boulders aren’t exactly in high supply in the grassy plains on which Stonehenge was built. Hannah Edgar, ARTnews.com, 26 Feb. 2025 See All Example Sentences for boulder

Word History

Etymology

short for boulder stone, from Middle English bulder ston, partial translation of a word of Scandinavian origin; akin to Swedish dialect bullersten large stone in a stream, from buller noise + sten stone

First Known Use

1607, in the meaning defined above

Time Traveler
The first known use of boulder was in 1607

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Cite this Entry

“Boulder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boulder. Accessed 13 Mar. 2025.

Kids Definition

boulder

noun
boul·​der ˈbōl-dər How to pronounce boulder (audio)
: a large detached and rounded or worn mass of rock

Geographical Definition

Boulder

geographical name

Boul·​der ˈbōl-dər How to pronounce Boulder (audio)
city northwest of Denver in north central Colorado population 97,385

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