taxonomic group under the order level and above the genus level.
- (countable) A group of people who live together, or one that is similar to one that is related by blood, marriage, law, or custom, or members of one's intimate social group.
- A series of hardware or software products that have some properties in common, such as a series of personal computers from the same company, a series of CPU chips from the same manufacturer that all use the same instruction set, a set of 32-bit operating systems based on the same API (for example, Windows 95 and Windows 98), or a set of fonts that are intended to be used together, such as Times New Roman.
In the context of human society, a family (from Latin: familia) is a group of people affiliated either by consanguinity (by recognized birth), affinity (by marriage or any other relation ship like siblings families etc..), or co-residence (as implied by the etymology of the English word "family") or some combination of these. Members of the immediate family includes spouses, parents, brothers, sisters, sons and/or daughters. Members of the extended family may include grandparents, aunts, uncles, cousins, nephews, nieces, and/or siblings-in-law. Sometimes these are also considered members of the immediate family, depending on an individual's specific relationship.
In most societies, the family is the principal institution for the socialization of children. As the basic unit for raising children, anthropologists generally classify most family organization as matrifocal (a mother and her children); conjugal (a husband, his wife, and children, also called the nuclear family); avuncular (for example, a grandparent, a brother, his sister, and her children); or extended (parents and children co-reside with other members of one parent's family). Sexual relations among the members are regulated by rules concerning incest such as the incest taboo.
The field of genealogy aims to trace family lineages through history.
Family is also an important economic unit studied in family economics.