PEANUT

[also UK] [specialized] groundnut [noun] [C] - a small seed which grows from a plant and ripens under the ground in a shell. They are often eaten with salt, esp. when cookedpeanut/groundnut oilsalted/dry-roast(ed) peanutsSee picture: NutsPeanut brittle is hard toffee (= a type of sweet made from butter and sugar) which contains peanuts.Peanut butter is a soft pale brown substance made from crushed peanuts which is often eaten spread on bread.a peanut butter sandwich(esp. US) The kids were eating peanut butter and jelly sandwiches.