assortment
attractive
basket
buy
card
cart
cash
cashier
cashless
charge
check
checkout
computer
convenience
counter
customer
debit
department
desk
discount
empty
grocery
hypermarket
interior
keypad
mall
market
money
pay
payment
plastic
pos
processing
product
purchase
receipt
register
retail
sale
screen
service
shelf
shop
shopping
spend
store
supermarket
terminal
transaction
trolley