01 n. A shallow sound, channel, pond, or lake, especially one into which the sea flows; as, the lagoons of Venice.
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1.
A shallow sound, channel, pond, or lake, especially one into which the sea flows; as, the lagoons of Venice.
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2.
A lake in a coral island, often occupying a large portion of its area, and usually communicating with the sea. See Atoll. See: Atoll
Phrases & compounds
Lagoon island —
a coral island consisting of a narrow reef encircling a lagoon.