a deduction from the usual cost of something
discount
an arrangement or placement of persons or objects of one kind in an orderly series
line
something such as a piece of paper or message proving that money, goods, or information have been received
receipt
the activity of looking at goods displayed in shop windows, especially without intending to buy anything.
window shopping
a thing bought or offered for sale more cheaply than is usual or expected.
bargain
a period during which a retailer sells goods at reduced prices.
sales
money in coins or notes
cash
a machine used in places of business for regulating money transactions with customers.
cash register
pay back (money), typically to a customer who is not satisfied with goods or services bought.
refund
a small room or cubicle in a clothing store, used by customers to try on clothes.
dressing room
a large store stocking many varieties of goods in different departments.
department store