Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: French
Origin: lagune, from Italian laguna, from Latin lacuna; LACUNA

lagoon

 noun
     
Related topics: Geology, Geography
la‧goon [countable]
1SG a lake of sea water that is partly separated from the sea by rocks, sand, or coral:
a coastal lagoon
2 American EnglishSG a small lake which is not very deep, near a larger lake or river
Definition from the Longman Dictionary of Contemporary English
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