DictionarylagoonCoastal water body
noun

lagoon

luh-GOON/ləˈɡuːn/

A shallow body of water separated from the open sea by a natural barrier.

A narrow strip of sand separates the lagoon from the ocean.

Lagoon: aerial oblique view of shallow turquoise water enclosed behind a long sandy barrier island, deep blue open sea outside; a narrow inlet connects them.
Etymology

Latin lacuna joins the ideas of a pond and a hollow. In English, the word named shallow coastal water around Venice, then also the lake-like water enclosed by an atoll.

In context

RawCut19:16
truck lagoon it's about 20 odd miles and 11 kilometers across and it was protected from the pacific ocean currents etc
I Was A City Slicker But Now A Country Bumpkin - Life Bursts Episode 36

More examples

  • A coral reef shelters the lagoon from ocean waves.
  • Seawater enters the lagoon through a gap in the dunes.
  • Shorebirds feed along the edges of these coastal lagoons.

Forms

lagoon · lagoons

Similar words

bay
Usually opens more directly to the sea than a lagoon.
inlet
A narrow coastal opening, rather than a sheltered shallow basin.