peanut butter

noun

: a creamy food made of peanuts that is used especially as a spread, filling, or ingredient

peanut butter and jelly

smooth/chunky peanut butter

… indulgent brownies—rich with peanut butter and studded with chocolate chips …

—Gourmet

Stuffed with peanut butter, celery is the quintessential after-school snack …

—Sara Dickerman

—often used before another noun

a peanut butter sandwich

peanut butter cookies

Examples of peanut butter in a Sentence

Recent Examples on the Web

There are still a lot of constraints, even on food items like peanut butter. — Isaac Chotiner, New Yorker, 21 Sep. 2026

For extra moist muffins, add a spoonful of peanut butter or hazelnut spread to each muffin before baking. — Jenna Sims, Southern Living, 20 Sep. 2026

The Reese’s x Reebok Angel Reese 1 sneaker sports a Brown/Orange/Yellow color combination inspired by the brand’s signature color palette as well as representing its staple chocolate and peanut butter flavors. — Riley Jones, Footwear News, 19 Sep. 2026

The 2010 film’s success is often attributed to the chocolate-and-peanut butter-like pairing of Sorkin’s earnest optimism and Fincher’s clinical cynicism. — Chris O'Falt, IndieWire, 18 Sep. 2026

Word History

First Known Use

1881, in the meaning defined above

Kids Definition

peanut butter

noun

: a paste made chiefly of ground roasted peanuts