A levee (from the French for "raised") is a natural or artificial embankment, usually earthen, which parallels the course of a river. Usually the term levee in Louisiana implies a man made feature constructed for the purpose of flood control.
A long continuous ridge built by people along the banks of a stream to contain the water during times of high flow. Natural levees can also be built along the banks of a stream. When the flood water decelerates upon leaving the channel, sediments quickly drop out of suspension and build a ridge over time.
An embankment raised to prevent a river from overflowing or to protect land from other rising water. In New Orleans, levees are usually huge, sloping mounds of earth running along the Mississippi River, the outfall canals, and Lake Pontchartrain.
A long, narrow embankment usually built to protect land from flooding. If built of concrete or masonary the structure is usually referred to as a flood wall. Levees and floodwalls confine streamflow within a specified area to prevent flooding. The term "dike" is used to describe an embankment that blocks an area on a reservoir or lake rim that is lower than the top of the dam.
A natural levee is a deposit of alluvium which is raised above the general level of the banks of a stream and its flood plain. Man-made levees may be constructed along the course of a river or stream in order to contain flood waters.
A morning assembly or reception of visitors, -- in distinction from a soirée, or evening assembly; a matinée; hence, also, any general or somewhat miscellaneous gathering of guests, whether in the daytime or evening; as, the president's levee.