One who accepts money for a sexual act. There are many classes of prostitutes. There are streetwalkers
, then massage parlors, then escorts, then call girls. Only about 20% of "working girls" are streetwalkers, although they make up 80% of arrests and 100% of news coverage. Prostitution is not all streetwalkers, it's also the girl next door to you who does it because she chooses to do so. It is a growing trend among young women as they begin to see that they have been mislead about the profession by the sensationalist media. See authors Belle de Jour
, Madame Meretrix
, and the Scarlet Harlot.