peanut /ˈpiːnʌt/noun 2verb 1forms 3phrases 2 noun2 •a small food eaten as a nut, which grows in a thin hard case under the ground and is often eaten with saltHe always liked eating peanuts along with tea before biscuits came into his life. •(US) Synonym of countneck (“very small hard clam”). verb1 •To pull on somebody's tie as a prank, causing the knot to tighten. formspeanutted · peanutting · peanuts Phrases with peanut peanut butterA spread made from ground peanuts. peanut galleryIn the nineteenth century, the cheap seats at the back of a theatre or in the upper balcony.