domestic partner

1. A person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationship (synset 110044087)
   is a type of: individual, mortal, person, somebody, someone, soul - a human being
   subtypes:

   • lover - a significant other to whom you are not related by marriage
   • better half, married person, mate, partner, spouse - a person's partner in marriage
   same as: significant other, spousal equivalent, spouse equivalent

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