floodplain
noun
flood·plain
ˈfləd-ˌplān 
1
: level land that may be submerged by floodwaters
2
: a plain built up by stream deposition
Examples of floodplain in a Sentence
Recent Examples on the Web
Jesse Hieb and Ryan Bingham opened the business in November 2025 at Hart Park, months after historic August flooding damaged and closed much of the 52-acre park, which is located on a floodplain.
—
Bridget Fogarty, jsonline.com, 2 Feb. 2026
This rich ecosystem of rainforests, floodplains, and mangrove swamps is home to 10 primate species.
—Laura Kiniry, Condé Nast Traveler, 28 Jan. 2026
The closest creek is 75 yards away, and the church wasn’t considered to be in the 100-year floodplain, but that changed after Helene, officials said.
—Mark Price, Charlotte Observer, 15 Jan. 2026
But Suen encourages residents in flood-prone areas to still have an emergency preparedness kit ready, along with knowing their flood risk and looking at FEMA floodplain maps for their families.
—Charlie Lapastora, CBS News, 6 Jan. 2026
See All Example Sentences for floodplain
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bridget Fogarty, jsonline.com, 2 Feb. 2026
This rich ecosystem of rainforests, floodplains, and mangrove swamps is home to 10 primate species.
—Laura Kiniry, Condé Nast Traveler, 28 Jan. 2026
The closest creek is 75 yards away, and the church wasn’t considered to be in the 100-year floodplain, but that changed after Helene, officials said.
—Mark Price, Charlotte Observer, 15 Jan. 2026
But Suen encourages residents in flood-prone areas to still have an emergency preparedness kit ready, along with knowing their flood risk and looking at FEMA floodplain maps for their families.
—Charlie Lapastora, CBS News, 6 Jan. 2026
See All Example Sentences for floodplain
Cite this Entry
“Floodplain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/floodplain. Accessed 11 Feb. 2026.
Copy CitationKids Definition
floodplain
noun
flood·plain
-ˌplān
1
: low flat land along a stream or river that may flood
2
: a plain built up from earth left by floodwaters
Love words? Need even more definitions?
Merriam-Webster unabridged
