the narrow definition is of someone who trades sex for money.The appropriate definition is of someone who trades sex in the broadest sense for economic gain.The key difference is that the second ,broader definition describes a spectrum;
- money for sex by the act, hour or night
- sugar baby/daddy
relationships (sex and arm candy for a retainer)
- mistress ( Sex and arm candy plus
conversation and company for living expenses and spending cash)
-trophy wife/husband (arm candy ,sex and company for a good lifestyle)
-trophy wife/partner with child ( hostage taker, no more sex or
companionship, But lifestyle guaranteed by marriage or child support/alimony .
-gold digger partner ( sex and devotion first exchanged for lifestyle, then extorted.