What is the meaning of Affinity?

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 a such relationship; one who is affinal.

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

Any romantic relationship.

A love interest; a paramour.

Any passionate love for something.

Resemblances between biological populations, suggesting that they have a common origin, type or stock.

Structural resemblances between minerals; resemblances that suggest that they are of a common origin or type.

An attractive force between atoms, or groups of atoms, that contributes towards their forming bonds.

The attraction between an antibody and an antigen

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

An automorphism of affine space.

Source: wiktionary.org