Meaning of peanut

pea•nut

1. the pod or the enclosed edible seed of the plant, Arachis hypogaea, of the legume family: the pod is forced underground in growing, where it ripens.
2. the plant itself.
3. any small or insignificant person or thing.
4. working for peanuts.
1. Informal.a very small amount of money:working for peanuts.
2. Slang.barbiturates.
3. small pieces of Styrofoam used as a packing material.

1. of or pertaining to the peanut or peanuts.
2. made with or from peanuts.
3. small, insignificant, or petty.