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sweet potato

American  

noun

  1. a plant, Ipomoea batatas, of the morning glory family, grown for its sweet, edible, tuberous roots.

  2. the root itself, used as a vegetable.

  3. Informal. ocarina.


sweet potato British  

noun

  1. a convolvulaceous twining plant, Ipomoea batatas, of tropical America, cultivated in the tropics for its edible fleshy yellow root

  2. the root of this plant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sweet potato

An Americanism dating back to 1740–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The sweet potato coconut soup hit the spot.

From The Wall Street Journal • Apr. 1, 2026

We feasted on smoked pork belly, which was fatty and fork-tender, smoked brisket, baked beans, and, of course, candied sweet potato with plenty of butter, cinnamon, and sugar.

From Salon • Jan. 13, 2026

Shredded raw red cabbage and roasted sweet potato coins, caramelized at the edges.

From Salon • Jan. 13, 2026

The question of whether "ducana" – a sweet potato and coconut dumpling – should or should not contain raisins has divided local residents for decades.

From BBC • Feb. 15, 2025

Everyone gathered around as Mareth passed out fish, bread, and something that reminded Gregor of a sweet potato but wasn’t.

From "Gregor the Overlander" by Suzanne Collins