lagoon

/ləˈɡuːn/noun

A stretch of shallow water cut off from the open sea by a strip of sand, rock, or reef.

Example sentence

“We swam in a calm blue lagoon sheltered from the ocean waves.”

A postcard word: 'blue lagoon' imagery dominates. Sewage treatment also uses 'lagoon' for holding ponds, a jarringly different context.

Related words

creekA small flowing body of fresh water, usually smaller than a river, though in Australia the word can describe much larger watercourses.lakeA big body of water, or a similar liquid, that is enclosed by land on all sides.brookA small, natural stream of flowing water, smaller than a river.wetlandAn area of land that is largely under water, with patches of marshy or soggy ground.springTo leap or jump suddenly, or to appear or shoot out quickly.marshLow-lying ground that stays wet, typically covered with tall grasses and other soft plants.