broker vs strike a bargain

broker

verb
  • To act as a broker in; to arrange or negotiate. 

  • To act as a broker; to mediate in a sale or transaction. 

noun
  • An agent involved in the exchange of messages or transactions. 

  • A mediator between a buyer and seller. 

  • A stockbroker. 

  • A mediator in general, one who liaises between two or more parties to attempt to achieve an outcome of some kind. 

strike a bargain

verb
  • To enter into a bargain; to agree upon the conditions of a sale or other transaction. 

How often have the words broker and strike a bargain occurred in a corpus of books? (source: Google Ngram Viewer )