boulder

noun
UK: /ˈbəʊldər/
US: /ˈboʊldər/

  1. A very large rock or stone, typically one that is naturally rounded or worn.

    1. A big boulder blocked the road after the landslide. [ ] [ ]
    2. The climbers carefully navigated the field of massive boulders near the summit. [ ] [ ]

  2. A large detached rock mass that is bigger than a cobble and has been transported from its place of origin.

    1. Erosion slowly smoothed the rough edges of the granite boulder. [ ] [ ]
    2. Geologists studied the composition of the erratic boulder to determine its source. [ ] [ ]

Synonyms

mass stone erratic outcrop rock
boulder verb

  1. To move or proceed in a hurried or clumsy manner.

    1. He tried to boulder through the crowd to catch the bus. [ ] [ ]
    2. The football player attempted to boulder his way through the defensive line. [ ] [ ]

  2. To climb on or over boulders as a recreational activity.

    1. They planned to boulder at the local climbing gym this weekend. [ ] [ ]
    2. She loves to boulder in her free time, finding unique routes up each rock. [ ] [ ]

Frequently Asked Questions

The word "boulder" in English means: A very large rock or stone, typically one that is naturally rounded or worn., A large detached rock mass that is bigger than a cobble and has been transported from its place of origin..

The phonetic transcription of "boulder" is /ˈbəʊldər/ in British English and /ˈboʊldər/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "boulder": mass, stone, erratic, outcrop, rock.

Example usage of "boulder": "A big boulder blocked the road after the landslide.". More examples on the page.