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

Another good option is to enhance peanut butter toast’s nutritional value by adding and swapping out different toppings. — Trista Chan, HEALTH, 12 Oct. 2026

Fiber helps slow the absorption of sugar into the bloodstream, while the fat and protein in peanut butter further slow digestion. — Sarah Jividen, Verywell Health, 8 Oct. 2026

Its brands include Folgers coffee, Jif peanut butter and Smucker's jams and jellies. — Michelle Fox, CNBC, 7 Oct. 2026

Individually wrapped and made with gooey peanut butter, rich chocolate, and crunchy rice cereal, these treats feel homemade and almost too good to give away. — Claire Hoppe Norgaard, Better Homes & Gardens, 7 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