Source : Webster's Revised Unabridged Dictionary (1913)

Prostitute \Pros"ti*tute\, n. [L. prostituta.]
   1. A woman giver to indiscriminate lewdness; a strumpet; a
      harlot.

   2. A base hireling; a mercenary; one who offers himself to
      infamous employments for hire.

            No hireling she, no prostitute to praise. --Pope.

Prostitute \Pros"ti*tute\, v. t. [imp. & p. p. {Prostituted}; p.
   pr. & vb. n. {Prostituting}.] [L. prostitutus, p. p. of
   prostituere to prostitute; pro before, forth + statuere to
   put, place. See {Statute}.]
   1. To offer, as a woman, to a lewd use; to give up to
      lewdness for hire. ``Do not prostitute thy daughter.''
      --Lev. xix. 29.

   2. To devote to base or unworthy purposes; to give up to low
      or indiscriminate use; as, to prostitute talents; to
      prostitute official powers. --Milton.

Prostitute \Pros"ti*tute\, a. [L. prostitutus, p. p.]
   Openly given up to lewdness; devoted to base or infamous
   purposes.

         Made bold by want, and prostitute for bread. --Prior

Source : WordNet®

prostitute
     n : a woman who engages in sexual intercourse for money [syn: {cocotte},
          {whore}, {harlot}, {bawd}, {tart}, {cyprian}, {fancy
         woman}, {working girl}, {sporting lady}, {lady of
         pleasure}, {woman of the street}]
     v : sell one's body; exchange sex for money