Other forms: pawnbrokers
A pawnbroker is someone who owns a shop that loans people money in exchange for valuable items. If you want to hock your engagement ring, head to a pawnbroker!
If you pawn your bike at a pawnbroker's shop (also called a pawnshop), you will leave with cash, but not quite as much as your bike is worth. To get it back, you'll have to pay back the money plus interest — and if you don't, the pawnbroker will eventually sell your bike to someone else. To pawn is to "give an object as security in exchange for money," and a broker is a "seller of other people's goods."