boulder
noun /ˈbəʊldə(r)/
/ˈbəʊldər/
- a very large rock which has been shaped by water or the weather
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- huge granite boulders underneath the cliff
- fallen rocks and boulders
- As the ice sheet rode over the land, huge boulders were ripped from the underlying rock.
Word Originlate Middle English: shortened from earlier boulderstone, of Scandinavian origin.