Household membership alt=|300x300px|A family tree displaying the terminology of relationships between relatives . Household — one or more persons who share main residence, and share meals or living space Single person Family Single parent Nuclear family (immediate family) Spouse Husband Wife Parent Father Mother Step-father Step-mother Legal guardian Child Son Daughter Step-son Step-daughter Sibling Brother Sister Stepfamily Extended family Grandparent Grandfather Grandmother Grandson Granddaughter Uncle Aunt Cousin Nephew Niece Family-in-law Father-in-law Mother-in-law Brother-in-law Sister-in-law Kinship Consanguinity Affinity Fictive kinship Relation change Marriage Adoption Relation end Breakup Divorced Disownment Emancipation Widowhood Household aspects Caregiver Gender roles Household economics Breadwinner model Intimate relationship Cohabitation — living together without being married. Committed relationship — interpersonal relationship based upon a mutually agreed-upon commitment to one another involving exclusivity, honesty, trust or some other agreed-upon behavior. The term is most commonly used with informal relationships, such as "going steady , "  but may encompass any relationship where an expressed commitment is involved. Close friendship — being close friends Courtship Long-term relationship (LT —R) Monogamy — having a single long-term sexual partner or marriage to one person. Polyamory — having multiple long-term sexual partners. Polygamy — marriage to multiple partners. Polyandry — the marriage of a woman to multiple men. Polygyny — the marriage of a man to multiple women. Polygynandry — the marriage of multiple men to multiple women. Free union Engagement or betrothal; the period of time between a marriage proposal and the marriage itself, sometimes accompanied by the formal Church announcement of the intent to marry known as banns. Marriage Marriage partners Husband Wife Types of marriage Arranged marriage Forced marriage Cousin marriage Open marriage Civil union Domestic partnership Boyfriend Girlfriend Familial relationship — relationship between members of a family. Family members tend to form close personal relationships. See family section above. Friendship Extramarital affair Love–hate relationship Romantic friendship Relationship anarchy Casual relationship Female-led relationship – woman or wife led relationship (FLR) Other types of relationships Conservatorship Enemy Frenemy — a person with whom an individual maintains a friendly interaction despite underlying conflict, possibly encompassing rivalry, mistrust, jealousy or competition. Godparents Mentorship Neighbor Abuse Child abuse Elder abuse Dating abuse Domestic violence Emotional abuse Verbal abuse Gaslighting Financial abuse Infidelity — breach of the expectation of sexual exclusivity. Also called "cheating". Extramarital affair Adultery Extramarital sex Neglect Spousal abuse Theories of interpersonal relations Socionics – theory of intertype relationsАугустинавичюте А. (1996). Социон, или Основы соционики. Соционика, ментология и психология личности, 4-5. (In Russian. Title can be translated as Augustinavichiute A. (1996). The Socion, or Socionics Basics. Socionics, Mentology, and Personality Psychology, 4-5). incorporating Carl Jung's work on personality types with Antoni Kępiński's theory of information metabolism. Attachment theory – describes the dynamics of long-term relationships between humans. Its most important tenet is that an infant needs to develop a relationship with at least one primary caregiver for social and emotional development to occur normally. Social exchange theory – a social-psychological and sociological perspective that explains social change and stability as a process of negotiated exchanges between parties. Posits that human relationships are formed by a subjective cost-benefit analysis and the comparison of alternatives. Relational models theory - a psychological theory authored by Alan Fiske proposing four elementary forms of human relations 
Household membership alt=|300x300px|A family tree displaying the terminology of relationships between relatives Household — one or more persons who share main residence, and share meals or living space Single person Family Single parent Nuclear family (immediate family) Spouse Husband Wife Parent Father Mother Step-father Step-mother Legal guardian Child Son Daughter Step-son Step-daughter Sibling Brother Sister Stepfamily Extended family Grandparent Grandfather Grandmother Grandson Granddaughter Uncle Aunt Cousin Nephew Niece Family-in-law Father-in-law Mother-in-law Brother-in-law Sister-in-law Kinship Consanguinity Affinity Fictive kinship Relation change Marriage Adoption Relation end Breakup Divorced Disownment Emancipation Widowhood Household aspects Caregiver Gender roles Household economics Breadwinner model Intimate relationship Cohabitation – living together without being married. Committed relationship – interpersonal relationship based upon a mutually agreed-upon commitment to one another involving exclusivity, honesty, trust or some other agreed-upon behavior. The term is most commonly used with informal relationships, such as "going steady " , but may encompass any relationship where an expressed commitment is involved. Close friendship – being close friends Courtship Long-term relationship (LT —R) Monogamy – having a single long-term sexual partner or marriage to one person. Polyamory – having multiple long-term sexual partners. Polygamy – marriage to multiple partners. Polyandry – the marriage of a woman to multiple men. Polygyny – the marriage of a man to multiple women. Polygynandry – the marriage of multiple men to multiple women. Free union Engagement or betrothal; the period of time between a marriage proposal and the marriage itself, sometimes accompanied by the formal Church announcement of the intent to marry known as banns. Marriage Marriage partners Husband Wife Types of marriage Arranged marriage Forced marriage Cousin marriage Open marriage Civil union Domestic partnership Boyfriend Girlfriend Familial relationship – relationship between members of a family. Family members tend to form close personal relationships. See family section above. Friendship Extramarital affair Love–hate relationship Romantic friendship Relationship anarchy Casual relationship Female-led relationship – woman or wife led relationship (FLR) Other types of relationships Conservatorship Enemy Frenemy – a person with whom an individual maintains a friendly interaction despite underlying conflict, possibly encompassing rivalry, mistrust, jealousy or competition. Godparents Mentorship Neighbor Abuse Child abuse Elder abuse Dating abuse Domestic violence Emotional abuse Verbal abuse Gaslighting Financial abuse Infidelity – breach of the expectation of sexual exclusivity. Also called "cheating". Extramarital affair Adultery Extramarital sex Neglect Spousal abuse Theories of interpersonal relations Socionics – theory of intertype relationsАугустинавичюте А. (1996). Социон, или Основы соционики. Соционика, ментология и психология личности, 4-5. (In Russian. Title can be translated as Augustinavichiute A. (1996). The Socion, or Socionics Basics. Socionics, Mentology, and Personality Psychology, 4-5). incorporating Carl Jung's work on personality types with Antoni Kępiński's theory of information metabolism. Attachment theory – describes the dynamics of long-term relationships between humans. Its most important tenet is that an infant needs to develop a relationship with at least one primary caregiver for social and emotional development to occur normally. Social exchange theory – a social-psychological and sociological perspective that explains social change and stability as a process of negotiated exchanges between parties. Posits that human relationships are formed by a subjective cost-benefit analysis and the comparison of alternatives. Relational models theory – a psychological theory authored by Alan Fiske proposing four elementary forms of human relations .
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