Any person (especially a woman) who has sexual intercourse or engages in other sexual activity for payment, especially as a means of livelihood.
A person who does, or offers to do, a demeaning or dishonourable activity for money or personal gain; someone who acts in a dishonourable way for personal advantage.
To offer (oneself or someone else) for sexual activity in exchange for money.
To sacrifice (oneself, one's talents etc.) in return for profit or other advantage; to exploit for base purposes.