partner
/ˈpɐːtnə/noun
A spouse or other person with whom one shares a domestic, romantic, or sexual bond.
Related words
guardianSomeone who guards, watches over, or protects.divorceThe legal dissolution of a marriage.orphanA person, especially a minor, both or (rarely) one of whose parents have died.weddingA marriage ceremony; a ritual officially celebrating the beginning of a marriage.twinEither of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.marriageA union of two or more people that creates a family tie and carries legal, social, or religious rights and responsibilities.