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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

In the supermarket, bilingual signs pointed shoppers to bwyd môr in Welsh, or seafood, rather than boos mor, and tatws melys, or sweet potato, rather than aval dor melys.

From BBC • Feb. 4, 2026

At this point, McGee wasn’t talking about chocolate sweet potato pie anymore.

From Salon • Jun. 19, 2025

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

Pork chops, fried chicken, garlic mashed potatoes, a trough of Caesar salad, steamed beans, fresh baked rolls, and of course sweet potato pie—all delicious, especially the pie.

From "Storm Runners" by Roland Smith