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Geography · Grades 3–4

Delta

noun

A triangular area of land formed by sediment deposited where a river meets a larger body of water.

Example Sentences

"The Nile Delta is one of the world's most fertile farming regions."

"New Orleans is built on the delta of the Mississippi River."

Synonyms & Related Terms

river mouthfan deposit

Quick Check

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Study Tips

To remember delta, try writing it in a sentence of your own. Connect it to something you already know about geography.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.