All floodplains synonyms

noun floodplains

• plains — clear or distinct to the eye or ear: a plain trail to the river; to stand in plain view.
• deltas — Plural form of delta.
• fens — low land covered wholly or partially with water; boggy land; a marsh.
• marshes — a tract of low wet land, often treeless and periodically inundated, generally characterized by a growth of grasses, sedges, cattails, and rushes.