lagoon

noun

la·​goon lə-ˈgün How to pronounce lagoon (audio)
Synonyms of lagoonnext
1
: a shallow sound, channel, or pond near or communicating with a larger body of water
2
: a shallow artificial pool or pond (as for the processing of sewage or storage of a liquid)
lagoonal adjective

Examples of lagoon in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In Manatí, near a chain of Taíno caves and the Tortuguero Nature Reserve (the island’s only natural lagoon), Efrén David Robles is expanding the idea of what Puerto Rico offers beyond San Juan’s beaches and El Yunque National Forest. Arati Menon, Condé Nast Traveler, 7 June 2026 The nonprofit preservation fund is set up to help the city’s natural lagoon, a critical habitat for several native species. Dyana Lederman, Travel + Leisure, 7 June 2026 Platja de Riumar, Ebro Delta The Ebro Delta is one of Spain's largest and most distinctive natural landscapes — a vast mosaic of wetlands, lagoons, rice fields, and barrier beaches extending into the Mediterranean. Jamie Carter, Space.com, 7 June 2026 The grounds surrounding the Museum Tower and other campus buildings are lush, dense, and integrate the Jackson Park lagoon. Tara Molina, CBS News, 4 June 2026 See All Example Sentences for lagoon

Word History

Etymology

French & Italian; French lagune, from Italian laguna, from Latin lacuna pit, pool, from lacus lake

First Known Use

1673, in the meaning defined at sense 1

Time Traveler
The first known use of lagoon was in 1673

Browse Nearby Words

Cite this Entry

“Lagoon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lagoon. Accessed 10 Jun. 2026.

Kids Definition

lagoon

noun
la·​goon lə-ˈgün How to pronounce lagoon (audio)
: a shallow channel or pond near or connected with a larger body of water

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