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

These Peanut Butter Fudge Cookies taste similar to the popular Girl Scout Tagalongs, with a peanut butter filling surrounded by a chocolate coating. — Elliott Harrell, Southern Living, 1 Nov. 2026

What readers are saying The conversation explores a range of opinions and nostalgic reflections on the changing quality and size of candy, particularly focusing on chocolate and peanut butter cups. — Megan McArdle, Washington Post, 30 Oct. 2026

Sliced bananas hide under a rich filling of peanut butter, cream cheese, and honey. — Ginger Crichton, Midwest Living, 29 Oct. 2026

The regular Reese's cups are the perfect ratio of chocolate to peanut butter, the shapes are basically peanut butter with a veneer of chocolate. — Jake Ciely, New York Times, 28 Oct. 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