prostitute

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A person who engages in prostitution.
• noun A person considered as having compromised principles for personal gain.
• transitive verb To offer (oneself or another) for sexual activity in exchange for money.
• transitive verb To devote (oneself or one's talent, for example) to an unworthy purpose, especially for personal gain.

from The Century Dictionary.

• To offer to a lewd use, or to indiscriminate lewdness, for hire.
• To surrender to any vile or infamous purpose; devote to anything base; sell or hire to the service of wickedness.
• Openly devoted to lewdness for gain.
• Sold for base or infamous purposes; infamous; mercenary; base.
• noun A woman given to indiscriminate lewdness for gain; a strumpet; a harlot. In criminal law it has been held that the element of gain is not essential or may be presumed.
• noun A base hireling; a mercenary; one who engages in infamous employments for hire.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Openly given up to lewdness; devoted to base or infamous purposes.
• noun A woman giver to indiscriminate lewdness; a strumpet; a harlot.
• noun A base hireling; a mercenary; one who offers himself to infamous employments for hire.
• transitive verb To offer, as a woman, to a lewd use; to give up to lewdness for hire.
• transitive verb To devote to base or unworthy purposes; to give up to low or indiscriminate use

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A woman, or other person, who performs sexual activity for payment.
• noun A woman, or other person, who is perceived as engaging in sexual activity with many people.
• noun A person who does, or offers to do, an activity for money, despite personal dislike or dishonour.
• verb transitive, usually reflexively To perform sexual activity for money
• verb transitive To make another person, or organisation, prostitute themselves.
• verb transitive To use one's talents in return for money or fame
• verb figuratively To exploit for base purposes; to whore.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb sell one's body; exchange sex for money
• noun a woman who engages in sexual intercourse for money