English Dictionary

boulder

/ˈbəʊl.də(ɹ)/

noun

A large mass of stone detached from the surrounding land. / (geology) A particle greater than 256 mm in diameter, following the Wentworth scale / A large marble, in children's games.

I climbed the boulder at the top of the mountain.

意味（1）

A large mass of stone detached from the surrounding land.

意味（2）

(geology) A particle greater than 256 mm in diameter, following the Wentworth scale

意味（3）

A large marble, in children's games.

There were four sizes of marbles and we called them boulders, biggies, regulars, and teenies.

意味（4）

(climbing) A session of bouldering; involvement in bouldering.