Source : Webster's Revised Unabridged Dictionary (1913)

Brew \Brew\, v. i.
   1. To attend to the business, or go through the processes, of
      brewing or making beer.

            I wash, wring, brew, bake, scour.     --Shak.

   2. To be in a state of preparation; to be mixing, forming, or
      gathering; as, a storm brews in the west.

            There is some ill a-brewing towards my rest. --Shak.

Brew \Brew\, n.
   The mixture formed by brewing; that which is brewed. --Bacon.

Brew \Brew\, v. t. [imp. & p. p. {Brewed}; p. pr. & vb. n.
   {Brewing}.] [OE. brewen, AS. bre['o]wan; akin to D. brouwen,
   OHG. priuwan, MHG. briuwen, br?wen, G. brauen, Icel. brugga,
   Sw. brygga, Dan. brygge, and perh. to L. defrutum must boiled
   down, Gr. ? (for ??) a kind of beer. The original meaning
   seems to have been to prepare by heat. [root]93. Cf. {Broth},
   {Bread}.]
   1. To boil or seethe; to cook. [Obs.]

   2. To prepare, as beer or other liquor, from malt and hops,
      or from other materials, by steeping, boiling, and
      fermentation. ``She brews good ale.'' --Shak.

   3. To prepare by steeping and mingling; to concoct.

            Go, brew me a pottle of sack finely.  --Shak.

   4. To foment or prepare, as by brewing; to contrive; to plot;
      to concoct; to hatch; as, to brew mischief.

            Hence with thy brewed enchantments, foul deceiver!
                                                  --Milton.

Source : WordNet®

brew
     n : drink made by steeping and boiling and fermenting rather
         than distilling [syn: {brewage}]
     v 1: prepare by brewing; "people have been brewing beer for
          thousands of years"
     2: sit or let sit in boiling water so as to extract the flavor;
        "the tea is brewing"