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

While efforts are made to keep bay marine life out of the lagoon, the possibility always exists for creatures to make their way into the body of water, according to police. — Jason Green, Mercury News, 14 July 2026

Terrazzo flooring composed of four natural stones and Murano glass elements recall the movement and gradation of the Venetian lagoon. — Lisa Lockwood, Footwear News, 13 July 2026

But lighting effects continue throughout Celestial Park, past two other lagoon sections and up to the main entrance. — Dewayne Bevil, The Orlando Sentinel, 10 July 2026

The alligator that became a sensation in Chicago after turning up in a Humboldt Park lagoon last month is healthy and enjoying the good life in sunny Florida, keepers at his new home said. — Kori Rumore, Chicago Tribune, 9 July 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