floodwall

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noun

A man-made vertical barrier designed to temporarily contain the waters of a river or other waterway during a flood

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Meanings

nounfloodwall (plural floodwalls)

plural floodwalls · alternative flood wall

  1. A man-made vertical barrier designed to temporarily contain the waters of a river or other waterway during a flood

    The New Orleans levees and floodwalls were built to withstand a hypothetical storm […].

    2007 May 29, John Schwartz, “Can Science Outwit Storms Like Katrina?”, in New York Times

Synonyms & antonyms

Also see
dykelevee

Origin

From flood + wall.

Full word history & related roots →

Translations

Finnish tulvavalli
  • tulvavallibarrier
Māori tupehau
  • tupehaubarrier
Cite this entry
APA

floodwall. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/floodwall

MLA

“floodwall.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/floodwall. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “floodwall,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/floodwall.

Source: floodwall on Wiktionary, CC BY-SA 4.0.