Affinity, in etymology affinity is the opposite of infinity . These two words have the same root coming from the Latin: finis = end. “Affinity” meaning is near to the “finis” e.g. close to the “zero point” in a before assumed space. On the other hand, from the Latin, affinis = connected with, having things in common, and it is utilised to interpret the effective possibility that some substances can or cannot mix together, in terms of sympathies and antipathies. More precisely, affinity may refer to:

Affinity (Fire Emblem), the numerous bonuses units have from sharing support conversations with one another.

Affinity (mathematics) - an affine transformation (which preserves collinearity).

Affinity (canon law), a relationship arising from the sexual intercourse of a man and a woman

Affinity group - small protest or activist groups of 10-30 people

Affinity (band), A Jazz/Rock band active in the late 60s and early 70s.

Electron affinity

Processor affinity

Affinity (law), kinship by marriage

Affinity (sociology)

Affinity (Christian organisation), formerly known as the British Evangelical Council

Affinity laws, in hydraulics, used to express the relationship between variables involved in fan or pump performance

Chemical affinity - the force of attraction between chemical species.

Affinity (BMJ), a publishing partnership programme of the BMJ Publishing Group Ltd for independent journals

Affinity (Stargate SG-1), a season 8 episode of Stargate SG-1.

Affinity, novel by Sarah Waters