The term revetment is a military term that refers to a wall or embankment used to protect against erosion or other damage caused by water. Synonyms for revetments include retaining walls, seawalls, flood protection walls, barriers, and embankments. A retaining wall is a structure designed to retain or hold back soil or other materials. Seawalls are used to prevent erosion and protect from the effects of waves or high tides. Flood protection walls are typically used to prevent flooding from rivers or other bodies of water. Barriers and embankments are also commonly used to protect against erosion or to create a physical barrier against water damage.