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 lagoon-life is out of this world, and swimming with sharks is one of the highlights of my trip (slash my entire life). —Alesandra Dubin, Travel + Leisure, 21 Feb. 2026

In the Oklahoma City area, places like OKANA Resort and Indoor Waterpark will soon open their outdoor beach and lagoon, and Frontier City and Hurricane Harbor will open for the 2026 season. —Josh Kelly, Oklahoman, 21 Feb. 2026

From geothermal spas to lagoon retreats, 2026 is ushering in seismic shifts in the world of wellness. —Jane Alexander, Condé Nast Traveler, 19 Feb. 2026

Plans for the lagoon include kayaking, swimming, a floating obstacle course, a splash pad and a swim-up bar. —Alexandria Mansfield, Florida Times-Union, 16 Feb. 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