boulder

play
noun boul·der \ˈbōl-dər\
variants: or less commonly

Definition of boulder

  1. :  a detached and rounded or much-worn mass of rock

bouldered

play \-dərd\ adjective

bouldery

play \-d(ə-)rē\ adjective

Recent Examples of boulder from the Web

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

Origin and Etymology of boulder

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


Boulder

play
geographical name Boul·der \ˈbōl-dər\

Definition of Boulder

  1. city northwest of Denver in north central Colorado population 97,385


BOULDER Defined for English Language Learners

boulder

play
noun

Definition of boulder for English Language Learners

  • : a very large stone or rounded piece of rock


BOULDER Defined for Kids

boulder

noun boul·der \ˈbōl-dər\

Definition of boulder for Students

  1. :  a very large rounded piece of rock



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