Definition - What does Co-Wife mean?
A co-wife is a woman who is in a group marriage. She shares a spouse with at least one other woman. This is a polygamous marriage.
Kinkly explains Co-Wife
Co-wives is a form of polygamy where a woman shares a spouse with one or more women. Polygamist societies still exist in the world such as the fundamentalist Mormon community in Bountiful British Columbia or in sects of fundamentalist Islam that encourage multiple wives.