A Quick and Simple Dictionary

concubine

1. Noun.  A woman who lives with a man, but who is not a wife.
2. Noun.  A slave-girl for sexual service prominent in all ancient cultures.
3. Noun.  Signifies a relationship where the male is the dominant partner, socially and economically.
4. Noun.  A woman attached to a man solely for reproduction, and who cares for the resulting children without any romantic relationship.
5. Noun.  (esp. formerly in Arabic societies, as well as in ancient eastern societies) a woman residing in a harem and kept, as by a sultan or an Emperor, for sexual purposes.
6. Noun.  A woman kept by a man who is high in hierarchial society in addition to his wives, e.g in the imperial harem or within a household. .