Noun
domestic partnership (plural domestic partnerships)
A legal or personal relationship between individuals who live together and share a common domestic life but are not joined in a traditional marriage or a civil union. Typically the partners in a domestic partnership enjoy at least part of the rights that the married couples have.
I would love to have the same rights as everybody else. I would love, I don't care if it's called marriage. I don't care if it's called, you know, domestic partnership. I don't care what it's called. Ellen DeGeneres