A person who works in this field is called a prostitute, and is a type of sex worker.Prostitution is one branch of the sex industry, along with pornography, stripping, and erotic dancing.
The legal status of prostitution varies from country to country (sometimes from region to region within a given country), ranging from being permissible but unregulated, to an enforced or unenforced crime, or a regulated profession.
It is sometimes referred to euphemistically as "the world's oldest profession" in the English-speaking world. Brothels are establishments specifically dedicated to prostitution.
However, sex worker can also mean anyone who works within the sex industry or whose work is of a sexual nature and is not limited solely to prostitutes.
A variety of terms are used for those who engage in prostitution, some of which distinguish between different types of prostitution or imply a value judgment about them.
Clients of prostitutes are sometimes known as johns or tricks in North America and punters in the British Isles.
These slang terms are used among both prostitutes and law enforcement for persons who solicit prostitutes.
Prostitution is sometimes described as commercial sex or hooking.
Depending on the jurisdiction, prostitution law may deem commercial sex to be legal or illegal.
Another explanation is that prostituta is a composition of pro and statuere (to cause to stand, to station, place erect).