pros·ti·tu·tion 
(prŏs′tĭ-tshən, -ty-)
(prŏs′tĭ-tshən, -ty-)n.
1.
a. The practice of engaging in sex acts in exchange for money.
b. The criminal offense of engaging in or offering to engage in sex in exchange for money.
2. The practice of offering oneself or using one's talents for an unworthy purpose, especially for personal gain.