Its all a matter of personal perspective. True chattel slavery is ilegal allmost everywhere. Economic slavery has a variety of forms, from share croppers to sweat shops and is ilegal in most western cultures at this time.
And just a note for historical clarity: Alltough the Romans did eventually constitute laws regarding exactly what could and couldnt be done to thier property (slaves etc) and some slaves even had the right to apeal in court, During the period of the entire Republic and the vast majority of Imperial Roman history the Pater Familias ruled supreme with the full right of life and death at his whim to held over all that he held dominion over including his family members sons daughters wife etc, even the slaves. It is in fact from the romans that we get the words Domino and Domina, later to be romanticsized as Dom and Domme. (slaves also had no sexual right of refusal) Most laws reguarding slavery in Rome were not constituted until well after the christian era began and had influenced the empire suficiently.
The Greeks also didnt have well wrought laws until the same time period in the majority of thier cities. Classical Greeks (prior to Alexander) had different laws depending on which citystate one resided in, yet for the most part two examples suficed to describe allmost all. In Sparta for instance for the longest time no one could own a slave, they were owned by the State, (see Helots), in Athens state owned and individual owned slaves existed,nieather variety had the right to refuse sexual advances or file a complaint. In fact in Athens a married man couldnt be found guilty of adultery unless it was with another mans residing wife or daughter. The men could stick it where and how ever they chose, including into consenting young boys. A corperal offence in the Roman Legions. lol Those prudish Romans. (not that they weret decadent behind closed doors)
My owner and i prefer the term kajira when used in reference to myself and basically any female slave, or with some affection to female submissives (potential kajira even exist in dominants clothing according to most Goreans)
As for titles and thier definitions, the site has an excellent section for common deffinitions of bdsm terminology, i suggest everyone give it a good read delia really did an awsome job on it, here is the link
http://www.bdsmlibrary.com/forums/sh...ad.php?t=16059