Ornamental or decorative work resembling rocks or shells.

Rocks and shells used to create ornamental figures and designs as decoration for a grotto or other garden feature. Compare "rocaille". Chiefly historical after 18th century.

A natural mass or group of rocks.

Stones roughly piled together in imitation of natural rocks as an ornamental garden feature, especially a rockery.

Masonry with a rough projecting face, giving the appearance of natural, freshly quarried rock. Compare rustic work.

Rock climbing.