These are all words for an amount of money that is charged or paid for something.
rate a fixed amount of money that is asked or paid for something: a low hourly rate of pay; interest rates charge an amount of money that is asked for goods or services: an admission charge fee (rather formal) an amount of money that you have to pay for professional advice or services, to go to a school or college, or to join an organization: legal fees; an annual membership fee rent an amount of money that you regularly have to pay for use of a building or room. NOTE. In American English, rent can be used to mean rental: The weekly rent on the car was over 0. dues an amount of money that you have to pay so that you can be a member of an organization. toll an amount of money that you have to pay to use a particular road or bridge. rental an amount of money that you have to pay to use something for a particular period of time.
RENT OR RENTAL? In British English rent is only money paid to use a building or room: for other items use rental. In American English rent can be used for both, but rental is still more common for other items.
tariff (rather formal) a list of fixed prices that are charged by a hotel or restaurant for rooms or meals, or by a company for a particular service.
PATTERNS AND COLLOCATIONS • to pay (a) rate/charge/fee/rent/dues/toll/rental for/on something • to do something at a rate/charge/fee/rent/rental of... • to do something for a charge/fee • to pay (a) rate/charge/fee/rent/dues/toll/rental • to charge (a) rate/fee/rent/dues/toll/rental