A thing bought or offered for sale much more cheaply than is usual or expected.
What's a bargain?
A restaurant where simple and usually quite cheap meals are served.
What 's a café?
How large or small something or someone is.
What is size?
After you buy something, you receive this.
What is a receipt?
A building or room containing collections of books, periodicals, and sometimes films and recorded music for use or borrowing by the public or the members of an institution.

What is a library?
A room where people can change their clothes, for example before and after sports or, in a shop, where people can try on clothes before buying them.
What is changing room?
To put on a piece of clothing in order to see how it looks and whether it fits.

What is try on?
A large shop divided into several different parts, each of which sells different things. Similar to shopping center.
What is a department store?
A person who buys goods or a service.
What is customer?