mo·nop·o·ly /məˈnɑp(ə)li/
 壟斷,專賣權,獨占事業
 Mo·nop·o·ly n.; pl. Monopolies
 1. The exclusive power, or privilege of selling a commodity; the exclusive power, right, or privilege of dealing in some article, or of trading in some market; sole command of the traffic in anything, however obtained; as, the proprietor of a patented article is given a monopoly of its sale for a limited time; chartered trading companies have sometimes had a monopoly of trade with remote regions; a combination of traders may get a monopoly of a particular product.
    Raleigh held a monopoly of cards, Essex a monopoly of sweet wines.   --Macaulay.
 2. Exclusive possession; as, a monopoly of land.
    If I had a monopoly out, they would have part on 't.   --Shak.
 3. The commodity or other material thing to which the monopoly relates; as, tobacco is a monopoly in France. [Colloq.]
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 monopoly
      n 1: (economics) a market in which there are many buyers but only
           one seller; "a monopoly on silver"; "when you have a
           monopoly you can ask any price you like"
      2: exclusive control or possession of something; "They have no
         monopoly on intelligence"
      3: a board game in which players try to gain a monopoly on real
         estate as pieces advance around the board according to the
         throw of a die