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flood plain

flood plain

5 3.7
Flat land next to a river that often floods when the river rises
  • noun
  • /flʌd pleɪn/
translation icon : llanura de inundación
  • Of course, many houses built in flood plains are required by their mortgage lenders to have flood insurance.
  • live in flood plain

Dried riverbeds, river deltas, flood plains.

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Examples

  • The property's in the flood plain and deteriorating.

    Fiction book (1997)
  • The government does it to reduce new construction in flood plains.

    Blog text (5)
  • Want to live in the flood plain? Accept the risk of flood damage.

    Blog text (14)
  • You know what happens when you build on flood plains in Louisiana.

    Blog text (4)
  • The soil was formed in recent alluvium from limestone and exists on flood plains.

    Academic text (2009)
  • Given the uncertainty of the discharges from the dam, farming on the flood plains was simply too risky.

    Academic text (2005)
  • Water flows from the snow melt in Angola into Botswana, creating the delta and flood plains.

    Academic text (1994)
  • For the past three centuries, the Mousgoum have made their home in the flood plains that straddle the border between northern Cameroon and Chad.

    Academic text (2001)
  • More specifically, the new regulations restrict the siting of landfills near airports, wetlands, flood plains, and fault areas.

    Academic text (1993)
  • Many families choose to build their homes on the flood plain because it offers fertile soil for gardening.

Synonyms

bottom
vsflood plain
33 5.8

Flat low land next to a river that often floods

focuses more narrowly on its susceptibility to flooding and sediment
floodplain
vsflood plain
11 4.6

Low land next to a river that can flood

is the two word variant used for the same river lowland
bottomland
vsflood plain
  • US
2 7.2

Low land next to a river that often floods and has rich soil

stresses the area's tendency to flood when the river overflows
alluvial plain
vsflood plain
  • Specialized
1 5.8

A flat area of land near a river with rich soil left by floods

focuses more on being prone to overflow and frequent flooding
alluvial flat
vsflood plain
  • Specialized
7.5

A flat area of land made by soil left by rivers

highlights flood risk and overflow rather than just formation process
holm
vsflood plain
  • Archaic
9.8

A low flat area beside a river that often floods

describes land more clearly defined by frequent flooding and sediments

Surface Forms

flood plain singular
flood plains plural

Morphology

flood + plain

The compound combines 'flood' (overflow of water) + 'plain' (flat open land) in a straightforward compositional way: a plain that is prone to flooding. This is a regular noun–noun compound pattern with clear semantics and cross-linguistic equivalents, so a B1 learner who knows both words can reliably infer the MWE meaning.

Etymology

Flood plain comes from a simple picture: a wide, flat plain next to a river that a flood fills. So, flood plain means 'flat land beside a river that often floods'.