bar·gain /ˈbɑrgən/
 買賣合同,成交條件,交易;廉價貨,便宜貨(vi.)議價,成交
 Bar·gain n.
 1. An agreement between parties concerning the sale of property; or a contract by which one party binds himself to transfer the right to some property for a consideration, and the other party binds himself to receive the property and pay the consideration.
    A contract is a bargain that is legally binding.   --Wharton.
 2. An agreement or stipulation; mutual pledge.
 And whon your honors mean to solemnize
 The bargain of your faith.   --Shak.
 3. A purchase; also ( when not qualified), a gainful transaction; an advantageous purchase; as, to buy a thing at a bargain.
 4. The thing stipulated or purchased; also, anything bought cheap.
    She was too fond of her most filthy bargain.   --Shak.
 Bargain and sale Law, a species of conveyance, by which the bargainor contracts to convey the lands to the bargainee, and becomes by such contract a trustee for and seized to the use of the bargainee. The statute then completes the purchase; i. e., the bargain vests the use, and the statute vests the possession. --Blackstone.
 Into the bargain, over and above what is stipulated; besides.
 To sell bargains, to make saucy (usually indelicate) repartees. [Obs.] --Swift.
 To strike a bargain, to reach or ratify an agreement. “A bargain was struck.” --Macaulay.
 Syn: -- Contract; stipulation; purchase; engagement.
 Bar·gain, v. i.  To make a bargain; to make a contract for the exchange of property or services; -- followed by with and for; as, to bargain with a farmer for a cow.
    So worthless peasants bargain for their wives.   --Shak.
 Bar·gain, v. t. [imp. & p. p. Bargained (░); p. pr. & vb. n. Bargaining.] To transfer for a consideration; to barter; to trade; as, to bargain one horse for another.
 To bargain away, to dispose of in a bargain; -- usually with a sense of loss or disadvantage; as, to bargain away one's birthright.  “The heir . . . had somehow bargained away the estate.”
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 bargain
      n 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" [syn: deal]
      2: an advantageous purchase; "she got a bargain at the
         auction"; "the stock was a real buy at that price" [syn: buy,
          steal]
      v 1: negotiate the terms of an exchange; "We bargained for a
           beautiful rug in the bazaar" [syn: dicker]
      2: come to terms; arrive at an agreement