Pay money, pay the paper money

None. 'Pay' and 'money' are essentially overlapping.

Let me pay the cashier.
Let me pay the cashier.
Let me pay the bill.

Thank you.

Can I say:
Let me give the money to the cashier;
Let me give the paper money to the cashier?

stephenlearnerLet me give the money to the cashier;

This one is OK; the second is never heard.

In case it figures in, I want to observe that paper money is "bills" as opposed to coin. "Here, give the cashier the bills, and I'll put the coins in the safe."

Thank all of you.

Can you see my understanding of bill is correct?
When you say "give the cashier the bill or bills", the bill or bills refer to paper money.
When you say "pay the bill or bills", the bill or bills refer to a debt, a payable, a fee that you owe somebody.

CliveBut you could go to a restaurant in an English-speaking country every night for 20 years and never hear a customer say 'Give the cashier the bills', meaning paper money.

Right. In my example above, I was the owner directing the disposition of restaurant funds.

Thank you very much!!

To confuse you a bit more, AE bills are BE banknotes, or just notes, and AE checks are BE bills.

In the USA I pay checks with bills, but in the UK I pay bills with cheques or notes.

Rover