\Bro"ker\ (br[=o]"k[~e]r), n. [OE. brocour, from a word
akin to broken, bruken, to use, enjoy, possess, digest, fr.
AS. br[=u]can to use, enjoy; cf. Fries. broker, F.
brocanteur. See {Brook}, v. t.]
1. One who transacts business for another; an agent.
2. (Law) An agent employed to effect bargains and contracts,
   as a middleman or negotiator, between other persons, for a
   compensation commonly called brokerage. He takes no
   possession, as broker, of the subject matter of the
   negotiation. He generally contracts in the names of those
   who employ him, and not in his own. --Story.
3. A dealer in money, notes, bills of exchange, etc.
4. A dealer in secondhand goods. [Eng.]
5. A pimp or procurer. [Obs.] --Shak.
{Bill broker}, one who buys and sells notes and bills of
   exchange.
{Curbstone broker} or {Street broker}, an operator in stocks
   (not a member of the Stock Exchange) who executes orders
   by running from office to office, or by transactions on
   the street. [U.S.]
{Exchange broker}, one who buys and sells uncurrent money,
   and deals in exchanges relating to money.
{Insurance broker}, one who is agent in procuring insurance
   on vessels, or against fire.
{Pawn broker}. See {Pawnbroker}.
{Real estate broker}, one who buys and sells lands, and
   negotiates loans, etc., upon mortgage.
{Ship broker}, one who acts as agent in buying and selling
   ships, procuring freight, etc.
{Stock broker}. See {Stockbroker}.