Flood land and Flood plain

Flood plain and flood land are semantically related in floodplain topic. In some cases you can use "Flood plain" instead a noun phrase "Flood land".

Flood plain noun - A low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding.

Flood land and flood plain are semantically related in floodplain topic. You can use "Flood land" instead a noun phrase "Flood plain".