peanut

American  

[pee-nuht, -nuht] / ˈpiˌnʌt, -nət /

noun

1. the pod or the enclosed edible seed of the plant, Arachis hypogaea, of the legume family: the pod is forced underground in growing, where it ripens.

2. the plant itself.

3. any small or insignificant person or thing.

4. peanuts,

   1. Informal. a very small amount of money.

      working for peanuts.

   2. Slang. barbiturates.

   3. small pieces of Styrofoam used as a packing material.

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adjective

1. of or relating to the peanut or peanuts.

2. made with or from peanuts.

3. Informal. small, insignificant, or petty.

peanut British  

/ ˈpiːˌnʌt /

noun

1. See also peanuts

   1. a leguminous plant, Arachis hypogaea, of tropical America: widely cultivated for its edible seeds. The seed pods are forced underground where they ripen See also hog peanut

   2. Also called: goober.   goober pea.   groundnut.   monkey nut.  the edible nutlike seed of this plant, used for food and as a source of oil

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Other Word Forms

• peanutty adjective

Etymology

Origin of peanut

An Americanism dating back to 1790–1800; pea ¹ + nut

Explanation

A peanut is a plant that grows pods containing seeds that are also known as peanuts. You may think of peanuts as nuts, but they're actually legumes. Despite the deceptive name peanut, this plant is more closely related to peas than it is to almonds and hazelnuts. Peanuts are an important food crop around the world, in the form of oil, flour, peanut butter, and roasted, whole peanuts. Peanuts were originally called "ground nuts," and despite their popularity, they're also known for being inexpensive — thus peanuts also informally means "a very small amount of money."

Example Sentences

Last month, participants cooked a Gambian peanut stew together - described by the authority as a "huge success".

From BBC • Mar. 29, 2026

On race morning, he’ll eat his usual: a bagel with peanut butter and a banana.

From Los Angeles Times • Mar. 6, 2026

The animals were captured using specially-designed traps filled with soft bedding and food, including oats, peanut butter, and Marmite -- which they find particularly delicious -- before being transferred to a footprint collection box.

From Science Daily • Jan. 29, 2026

The list included chewing gum, motorcycles and peanut butter, but was shelved after the bloc struck a trade deal with the U.S. that reduced Trump’s threatened tariffs by half.

From The Wall Street Journal • Jan. 19, 2026

And he showed me the peanut butter cookie.

From "Everything Sad Is Untrue" by Daniel Nayeri

Related Words

• groundnut