Nouns
Loan
Invest
A source of main income of a business that perhaps other parts of the business depends on
Cash cow
Mortgage
Trying to get the price down by informal negotiation
Haggle
You say that to remind others that it takes effort to make money
Money doesn't grow on trees
Money owed
Debt
Take money from the bank
Withdraw
Spend more money than usual as a treat for oneself
Splash out
The money used in a country
Currency
Put money into the bank account
Deposit
An expression that signifies that something costs little or that the payment for something (such as a job done) is little
Peanuts/chicken feed
What are the DOW Jones, the Borsa, Wall Street and the FTSE?
Stock Exchange
Keep money for future needs
Save
It means that something is very expensive, perhaps costing more than the fair market price or more than you think is reasonable.
Cost an arm and a leg / cost the earth