• Cobble is a geologic term for a rock or rock fragment with a grain size with dimensions between 64–256 mm (2.5–10 inch). Rounded cobble sized rocks are used as a construction material for road and street surfacing: see cobblestone.
• A cobble is also a shallow bottomed, low draught fishing boat.
• A coble is also a familiar term for the Hawfinch.
• See also cobblestone
• See also cobbler

Sedimentology