amount

buy

buying

cash

cashier

check

checkout

computer

consumerism

convenience

conveyor

counter

customer

department

discount

display

electronic

equipment

finance

food

grocery

horizontal

hypermarket

mall

market

money

monitor

nobody

pay

payment

photography

pos

purchase

register

registers

retail

sale

service

shelf

shop

shopping

spending

store

supermarket

symbol

terminal

trading

transaction

window