A person who serves customers in a shop.
Sales assistant
A man / woman who works in business, especially one with an important position in a company or who owns his own company.
Businesswoman / Businessman
A person who greets and deals with clients and visitors to a surgery, office, etc.
Receptionist
A person employed in a factory.
Factory worker
A person employed to show tourists around places of interest.
Tour guide
He / She helps sick people and works in a hospital.
Doctor - Nurse
A person who is studying or has expert knowledge of one or more of the natural or physical sciences.
Scientist
A woman whose main occupation is caring for her family, managing household affairs, and doing housework, while her husband goes out to work.
Housewife
A man whose job is to serve customers at their tables in a restaurant.
Waiter - Waitress
A person employed to clean the interior of a building.
Cleaner