機器
bank
banking
business
buy
buying
cafe
card
cashier
checkout
client
consumerism
contactless payment
credit
credit card
credit card purchase
currency
customer
device
digital
electronic
finance
finance and economy
financial
holding
mobile payment
money
pay
paying
payment
person
plastic
pos
purchase
restaurant
retail
sale
selling
service
shop
shopping
station
store
technology
terminal
transaction
transfer
wireless technology
woman