Bolder vs. Boulder

Bolder

Bolder is an English surname.

Bouldernoun

A large mass of stone detached from the surrounding land.

Bouldernoun

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

Bouldernoun

A large marble, in children's games.

Bouldernoun

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

Boulderverb

(climbing) To engage in bouldering.

Bouldernoun

Same as Bowlder.

Bouldernoun

a large smooth mass of rock detached from its place of origin

Bouldernoun

a town in north central Colorado; Rocky Mountains resort center and university town

Boulder

In geology (Udden–Wentworth scale), a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles.