Dike (noun)

1. A low wall or embankment to prevent flooding or erosion, typically made of earth or stones.
2. A narrow vein or zone of a different rock or mineral cutting across other rocks or minerals.

Origin:

Old english dīc, of west germanic origin; related to dutch dijk, german deich.

Examples:

1. The dike along the river helped protect the nearby farmland from seasonal floods.
2. The dike was built to control the water flow and prevent the nearby village from being flooded.
3. A network of dikes and levees were constructed to protect the city from the rising sea levels.
4. The dike of basaltic rock was intruded into the surrounding sedimentary rocks.
5. The dike of quartz cut across the surrounding granite, forming a clear boundary between the two rock types.