boulder
- 01 B2 Upper Intermediate
a very large, smooth rock that has been moved by water or ice.
a large mass of stone detached from the surrounding land, typically worn smooth by erosion or glacial transport.
Simple“The hikers sat on a giant boulder to eat their lunch by the river.”
In context“Glacial activity thousands of years ago deposited massive granite boulders across the valley floor, creating a striking geological landscape.”
- 02 C1 Advanced
a short climb on a small rock or indoor wall without using ropes.
a session or specific problem in bouldering, a form of rock climbing performed on small rock formations without ropes or harnesses.
Simple“He managed to finish a difficult boulder at the gym last night.”
In context“The athlete spent the afternoon working on a technical boulder, focusing on the precise footwork required for the final overhang.”
- 03 B2 Upper Intermediate
a well-known city in the state of Colorado, USA, near the mountains.
a home rule municipality and the county seat of Boulder County, Colorado, situated at the foothills of the Rocky Mountains.
Simple“Many people visit Boulder to enjoy the outdoor lifestyle and hiking trails.”
In context“Boulder is frequently cited as one of the most desirable places to live in the United States due to its proximity to the Flatirons.”
“Slabs of rock and mounds of plastic are pinned to the wall, boulders litter the ground, rubbish has been strung across the ceiling.”
“Then it gathers shape and speed: water, mud, boulders, ice and rock surging down the valley.”