peanut in WordNet English dictionary

1. widely cultivated American plant cultivated in tropical and warm regions; showy yellow flowers on stalks that bend over to the soil so that seed pods ripen underground
   peanut  peanut vine  Arachis hypogaea 
   
2. pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms
   peanut  earthnut  goober  goober pea  groundnut  monkey nut 
   
3. a young child who is small for his age
   peanut 
   
4. underground pod of the peanut vine
   peanut 
   

1. of little importance or influence or power; of minor status
   "a minor, insignificant bureaucrat"; "peanut politicians"
   insignificant  peanut