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

My days were spent successfully hunting for sand dollars and starfish with my sister, crabbing along the Kiawah River, and keeping my eyes peeled for alligators maneuvering between lagoons. —Lydia Mansel, Travel + Leisure, 25 Apr. 2026

With options like Atlantic Ocean mist, the shower is over-the-top in the best way, and the heated swimming pool is gently illuminated, creating a peaceful lagoon-like vibe. —Condé Nast, Condé Nast Traveler, 25 Apr. 2026

And local deliberations rarely compare the impact of solar farms to common agricultural practices, which can lead to runoff from fertilizers and herbicides, for example, or waste lagoons from concentrated animal feeding operations. —Anna Clark, ProPublica, 24 Apr. 2026

Proceeds will go to the lagoon’s environmental education program. —Linda McIntosh, San Diego Union-Tribune, 23 Apr. 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