BUCK

(MONEY) [noun] [C] [plural] bucks [informal] - a dollar(esp. US and ANZ) She left home with a couple of bucks in her pocket and the shirt on her back.(informal) Buck is used in a number of expressions about money, usually expressions referring to a lot of money.He earns mega-bucks (= a lot of money) working for an American bank.Writing a best-selling novel is a good way to make a fast/quick/an easy buck (= earn money easily and not always honestly).