In human society, a family is a relationship between people by genetics (consanguinity), marriage or adoption (affinity) or co-residence. Members of a family are usually described as relatives; those that lived prior to a family member are called 'ancestors'. Those that live after an individual are called 'descendants'.
Family comes from the Latin noun 'familia' which means 'family servants, domestics collectively, the servants in a household,' and 'members of a household, the estate, property; the household, including relatives and servants,'
Immediate family members are: spouses, parents, brothers, sisters, sons and daughters. Members of the extended family are grandparents, aunts, uncles, cousins, nephews and nieces and siblings-in-law. Sometimes people with an especially strong friendship are considered family.