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

The tracks were found in the sedimentary rippled sand remnants of an ancient subtropical lagoon. —Stephanie Edwards, Discover Magazine, 3 Apr. 2025

Closer to the hub of the property, 14 family-friendly beach bungalows overlook a private lagoon. —Jess Feldman, Travel + Leisure, 31 Mar. 2025

Image During last week’s trip, a teenage Rockefeller descendant was lounging under a palm tree near a blue lagoon. —Dionne Searcey, New York Times, 25 Mar. 2025

In the 1980s, the Environmental Protection Agency cited the GSD for the pumping of toxic sludge laced with PCBs into a small lagoon in violation of the Clean Water Act. —Carole Carlson, Chicago Tribune, 22 Mar. 2025

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