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 coral lives in a semi-enclosed underwater lagoon, within which the water temperature is significantly higher than the swirling South Pacific Ocean beyond. —Tom Soufi Burridge, ABC News, 21 Apr. 2025

The saltwater lagoon off the pool area is another hit with kids at the resort. —Annie Archer, Travel + Leisure, 19 Apr. 2025

Watkins steered the skiff across a clear blue lagoon twice the area of Manhattan to the eastern end. —Kevin Gepford, Smithsonian Magazine, 15 Apr. 2025

Hawks Cay offers private tropical villas with full kitchens and private lanais overlooking the lagoon or the ocean, as well as more traditional resort rooms. —Cynthia J Drake, Southern Living, 14 Apr. 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