kale

American  

[keyl] / keɪl /

Or kail

noun

1. Also called borecole.  a cabbagelike cultivated plant, Brassica oleracea acephala, of the mustard family, having curled or wrinkled leaves: used as a vegetable.

2. Scot. cabbage.

3. Slang. money.

---

kale ¹ British  

/ keɪl /

noun

1. a cultivated variety of cabbage, Brassica oleracea acephala, with crinkled leaves: used as a potherb See also collard

2. a cabbage

3. slang money

---

kale ² British  

/ keɪl /

noun

1. dialect a queue

---

Etymology

Origin of kale

1250–1300; Middle English cale, northern variant of cole

Explanation

Kale is a green leafy vegetable that's a close relative of cabbage and broccoli. Kale is tough and bitter when raw, but it can be yummy when you prepare it the right way. If you're a fan of green smoothies, there's almost certainly some kale in them. Marinating kale, roasting it with olive oil and salt, and throwing it in a stir fry are all great ways to make kale tasty. Long ago, kale was also a slang term for "money," as in, "Hand over the kale, sweetheart, and nobody gets hurt." Kale comes from a Scottish variation on cole, which meant "cabbage" in Middle English.

Example Sentences

Spinach, arugula, fennel, celery, and kale are also good dietary sources.

From Science Daily • May 25, 2026

They make an incredible kale salad and I love the San Gennaro pizza.

From Los Angeles Times • Apr. 24, 2026

When her first order, a kale and brussels sprout salad, arrived, she said she was shocked at how big it was.

From The Wall Street Journal • Apr. 17, 2026

An hour's drive north of New York City, the greenhouses at Cropsey Farm are seeing their first leaves of kale, spinach and arugula emerge.

From Barron's • Apr. 11, 2026

"It’s kale and potato soup," Alice said, "not vichyssoise/" voilA.

From "Woe Is I" by Patricia T. O'Conner