LAGOON

lagoon|langune. Lagoon, or Langune, n. a pond or marsh

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La‐goon″ (?), n. [[It. or Sp. laguna, L. lacuna ditch, pool, pond, lacus lake. See Lake, and cf. Lacuna.]] [Written also lagune.] 1. 1. A shallow sound, channel, pond, or lake, especially one into which the sea flows; as, the lagoons of Venice.
2. 2. A lake in a coral island, often occupying a large portion of its area, and usually communicating with the sea. See Atoll.
Lagoon island, a coral island consisting of a narrow reef encircling a lagoon.