marshy land; swampy ground
Refers to low-lying, waterlogged terrain; often used in geographical or descriptive contexts.
I heard this area used to be marshy land.
They reclaimed the swampy ground and turned it into a residential area.
Compound of 沢 (sawa, 'mountain stream' or 'marsh') and 地 (chi, 'land'). The exact historical derivation is uncertain, but the spelling is conventionally associated with marshy terrain.