Bank erosion refers to the process by which natural forces can wear away soil and rock along a river or stream bank. This can lead to a number of issues, including flooding and property damage. While bank erosion is a common occurrence, it can be mitigated through the use of various techniques. Some synonyms for bank erosion include riverbank erosion, streambank erosion, bank retreat, and riverbank retreat. These terms describe the same process but are used in different contexts. Riverbank erosion, for example, may refer to the natural erosion that occurs along a riverbank, while bank retreat may be used to describe the process of man-made structures degrading over time.