Noun

(lb) A group of people who are closely related to one another (by blood or marriage); for example, a set of parents and their children; an immediate family.

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*:Such a scandal as the prosecution of a brother for forgery—with a verdict of guilty—is a most truly horrible, deplorable, fatal thing. It takes the respectability out of a family' perhaps at a critical moment, when the ' family is just assuming the robes of respectability:it is a black spot which all the soaps ever advertised could never wash off.

*{{quote-magazine, title=Towards the end of poverty

, date=2013-06-01, volume=407, issue=8838, page=11, magazine=(The Economist) citation , passage=America’s poverty line is $63 a day for a family of four. In the richer parts of the emerging world $4 a day is the poverty barrier. But poverty’s scourge is fiercest below $1.25 ([…]): people below that level live lives that are poor, nasty, brutish and short.}}

(lb) An extended family; a group of people who are related to one another by blood or marriage.

*1915', William T. Groves, ''A History and Genealogy of the Groves '''Family in America

(lb) A (close-knit) group of people related by blood, marriage, law, or custom, especially if they live or work together.

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A rank in the classification of organisms, below order and above genus; a taxon at that rank.

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*:The closest affinities of the Jubulaceae are with the Lejeuneaceae. The two families share in common: a elaters usually 1-spiral, trumpet-shaped and fixed to the capsule valves, distally.

(lb) Any group or aggregation of things classed together as kindred or related from possessing in common characteristics which distinguish them from other things of the same order.

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A group of instruments having the same basic method of tone production.

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A group of languages believed to have descended from the same ancestral language.

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*{{quote-magazine, date=2013-06-14, author=(Jonathan Freedland)

, volume=189, issue=1, page=18, magazine=(The Guardian Weekly) , title= Obama's once hip brand is now tainted , passage=Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet.}}

Noun

(wikipedia affinity) (affinities)

A natural attraction or feeling of kinship to a person or thing.

A family relationship through marriage of a relative (e.g. sister-in-law), as opposed to consanguinity. (e.g. sister).

A kinsman or kinswoman of such relationship. Affinal kinsman or kinswoman.

The fact of and manner in which something is related to another.

* 1997 , Chris Horrocks, Introducing Foucault'', page 67, ''The Renaissance Episteme (Totem Books, Icon Books; ISBN 1840460865):

A “signature” was placed on all things by God to indicate their affinities' — but it was hidden, hence the search for arcane knowledge. Knowing was '''guessing''' and ' interpreting , not observing or demonstrating.

Any romantic relationship.

Any passionate love for something.

(taxonomy) resemblances between biological populations; resemblances that suggest that they are of a common origin, type or stock.

(geology) structural resemblances between minerals; resemblances that suggest that they are of a common origin or type.

(chemistry) An attractive force between atoms, or groups of atoms, that contributes towards their forming bonds

(medicine) The attraction between an antibody and an antigen

(computing) tendency to keep a task running on the same processor in a symmetric multiprocessing operating system to reduce the frequency of cache misses

(geometry) An automorphism of affine space.