Stanford University defines Domestic Partner as the partner of an eligible employee or retiree who is of the same sex, sharing a long-term committed relationship of indefinite duration This includes individuals with whom you have been living together for at least six months in an exclusive mutual commitment similar to marriage To enroll your same-sex domestic partner for benefits coverage, you must certify eligibility by completing the Certification of Legal Tax Dependency of Domestic Partner and Child(ren) form
someone who you live with and have a sexual relationship with, but who you are not married to
a person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationship
A committed relationship with either a same-sex or different-sex partner where there is interdependence for emotional and financial support