Marsh (noun)

1. An area of low-lying land that is flooded in wet seasons or at high tide, and typically remains waterlogged at all times.
2. A type of habitat characterized by low, poorly drained ground and periodically flooded soils.

Origin:

Old english mersc, merisc ‘marsh, swamp’, of west germanic origin; related to dutch mars ‘marsh’, from an indo-european root shared by greek amarakhos ‘marsh’.

Examples:

1. The marsh was full of reeds and other aquatic plants.
2. The company plans to build a resort on the edge of the marsh.
3. The birdwatchers spotted a variety of species in the marsh.
4. The marsh provides an important habitat for many animals and plants.
5. The marsh is known for its high biodiversity and ecological value.