bargain in WordNet English dictionary

1. an agreement between parties (usually arrived at after discussion) fixing obligations of each
   "he made a bargain with the devil"; "he rose to prominence through a series of shady deals"
   bargain  deal 
   
2. an advantageous purchase
   "she got a bargain at the auction"; "the stock was a real buy at that price"
   bargain  buy  steal 
   

1. come to terms; arrive at an agreement
   bargain 
   
2. negotiate the terms of an exchange
   "We bargained for a beautiful rug in the bazaar"
   dicker  bargain