lagoon

noun

la·​goon lə-ˈgün 

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

lə-ˈgü-nᵊl 

adjective

Examples of lagoon in a Sentence

Recent Examples on the Web

From there, researchers will make their way to the lagoon where satellites spotted the Taraia object. — Christopher Cann, USA Today, 12 Aug. 2026

Crete’s Elafonissi Beach topped Europe in a new global ranking thanks to its rare blush-colored sand, shallow lagoon, and remarkably clear water. — Lydia Mansel, Travel + Leisure, 11 Aug. 2026

In the morning, travelers will awake among the graceful canals and bridges of Venice, with a private water taxi to ferry them into the heart of the Venetian lagoon to explore the city’s many islands. — Jessica Puckett, Condé Nast Traveler, 10 Aug. 2026

Lach said the department trains year-round in rivers, lakes, and lagoons throughout Chicago, and will operate in nearly every weather condition except lightning. — Darius Johnson, CBS News, 6 Aug. 2026

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

Rhymes for lagoon

• attune
• baboon
• balloon
• bassoon
• buffoon
• cartoon
• cocoon
• festoon
• gaboon
• harpoon
• immune
• impugn

Kids Definition

lagoon

noun

la·​goon lə-ˈgün 

: a shallow channel or pond near or connected with a larger body of water