noun🔗ShareA large mass of stone detached from the surrounding land."The hikers carefully navigated around the large boulder on the mountain trail. "geologymaterialmassnatureenvironmentChat with AIVocabulary GamePractice Reading
noun🔗ShareA particle greater than 256 mm in diameter, following the Wentworth scale"The construction crew had to move a large boulder from the building site. "geologyenvironmentChat with AIVocabulary GamePractice Reading
noun🔗ShareA large marble, in children's games."The children used a smooth boulder as a marker for their game. "gamematerialChat with AIVocabulary GamePractice Reading
noun🔗ShareA session of bouldering; involvement in bouldering."My sister enjoys bouldering at the local climbing gym. "sportChat with AIVocabulary GamePractice Reading
verb🔗ShareTo engage in bouldering."After school, Liam went to the rock climbing gym to boulder. "sportactionentertainmentChat with AIVocabulary GamePractice Reading
