'Courtesan' definitions:

Definition of 'courtesan'

From: WordNet
noun
A woman who cohabits with an important man [syn: concubine, courtesan, doxy, paramour]

Definition of 'Courtesan'

From: GCIDE
  • Courtesan \Cour"te*san\ (k?r"t?-z?n; 277), n. [F. courtisane, fr. courtisan courtier, It. cortigiano; or directly fr. It. cortigiana, or Sp. cortesana. See Court.] A woman who prostitutes herself for hire; a prostitute; a harlot. [1913 Webster]
  • Lasciviously decked like a courtesan. --Sir H. Wotton. [1913 Webster]

Synonyms of 'courtesan'

From: Moby Thesaurus