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Definition of lagoon

lagoon

/ləˈɡuːn/
la · goon
Plural:lagoons
•
Adjective:lagoonal
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lagoon Lexical Profile

lagoon Game Scores & Validity

• noun

1

A shallow body of water separated from a larger sea or ocean by barrier islands, coral reefs, or sandbars.

Example

"The island resort features a series of overwater bungalows extending into the crystal-clear tropical lagoon."

2

An artificial pool or basin used for the treatment, settling, or storage of municipal, industrial, or agricultural wastewater.

Example

"The municipal water authority relies on an aerated lagoon to naturally break down organic waste."

Synonyms
View all synonyms for lagoon

• Rhymes for lagoon

• Nearby Words

laelia
lafayette
lagerstroemia
lagoon
lagos
lagos bologi
lahore

Word Origin & Etymology

From Italian 'laguna' and Spanish 'laguna', derived from Latin 'lacuna' meaning 'pool' or 'pond', from 'lacus' meaning 'lake'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Lagoon. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/lagoon
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