A girl or woman who flirts, that is, tries to attract people and make advances in love simply to satisfy her vanity

Solution (By Examveda Team)

One word substitute is Coquette.

Prostitute: a person, in particular a woman, who engages in sexual activity for payment.
Coquette: a flirtatious woman.
Spinster: an unmarried woman, typically an older woman beyond the usual age for marriage.
Concubine: (in polygamous societies) a woman who lives with a man but has lower status than his wife or wives.