Definition of boulder in English:

boulder

noun

  • A large rock, typically one that has been worn smooth by erosion.

    • ‘The organisation said the most numerous relics were rock carvings found on boulders and outcrops.’
    • ‘The hard bedrock prevented deep sockets being excavated, so the stones were supported by boulders.’
    • ‘The boys ascended a steep slope of pink rock to hide behind a boulder and watch.’
    • ‘A natural row of boulders formed a sort of perimeter to the city though I noticed no evidence of any actual wall.’
    • ‘We went to the edge of one of the large boulders on either side of the falls and peered down.’
    • ‘The reverie was broken as if someone hurled a boulder into a smooth flowing stream.’
    • ‘Position rocks or boulders around the posts, as well, to create added interest.’
    • ‘Launching the craft from the base of a steep bank of boulders we push onto a serene section of river in bright morning sunshine.’
    • ‘The walls and sea floor consist of stark boulders and rough seams of rock uncolonised by sedentary species.’
    • ‘Fortified by some lunch we clambered up a final range of large boulders and emerged onto the windswept summit.’
    • ‘At 10m the reef of boulders and rock gave way to a soft silt seabed covered in large patches of eelgrass.’
    • ‘The trees, caves and boulders have a mystical atmosphere, with signposts few and far between.’
    • ‘The trail narrowed, weaving round giant boulders and overhangs of smooth rock.’
    • ‘The pool itself is strewn with huge granite boulders that jut out of the water like ancient statues.’
    • ‘Raised beds are often contained by large well fitted boulders or split granite.’
    • ‘She hid behind a rock and quietly slunk around the pond, seeking refuge behind rocks and boulders.’
    • ‘I slowly made my way up a surface of unstable icy boulders, but higher up a slick of snow made the footing a little more secure.’
    • ‘Immense seascapes give way to more intimate, detailed pictures such as boulders on the beach at Lonbain.’
    • ‘The rescue efforts were also hampered by huge boulders, broken tree trunks and thick mud.’
    • ‘If we had skidded here we'd have had a long fall before crashing into the sharp boulders below.’
    rock, stone, boulderstone
    gibber, gibber stone
    View synonyms

Origin

Late Middle English: shortened from earlier boulderstone.

Pronunciation:

boulder

/ˈbəʊldə/