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.

Noun

Any great, strong, powerful emotion, especially romantic love or hate.

We share a passion for books.

* {{quote-news

, year=2011 , date=January 16 , author=Saj Chowdhury , title=Sunderland 1 - 1 Newcastle , work=BBC citation , page= , passage=That was partly because of a swirling wind that made precision passing difficult and also a derby atmosphere where the emphasis seemed to be on passion rather than football.}}

Fervor, determination.

An object of passionate or romantic love or strong romantic interest.

It started as a hobby, but now my motorbike collection has become my passion .

sexual intercourse, especially when very emotional

We shared a night of passion .

The suffering of Jesus leading up to and during his crucifixion.

A play, musical composition or display meant to commemorate the suffering of Jesus.

(obsolete) Suffering or enduring of imposed or inflicted pain; any suffering or distress.

a cardiac passion

* Wyclif Bible (Rom. viii. 18)

the passions of this time

(obsolete) The state of being acted upon; subjection to an external agent or influence; a passive condition; opposed to action .

* John Locke

A body at rest affords us no idea of any active power to move, and, when set is motion, it is rather a passion than an action in it.

(obsolete) Capacity of being affected by external agents; susceptibility of impressions from external agents.

* Francis Bacon

mouldable and not mouldable, scissible and not scissible, and many other passions of matter

(obsolete) An innate quality, property, or attribute of a thing.

to obtain the knowledge of some passion of the circle. (rfex)

(obsolete) Disorder of the mind; madness.

(Shakespeare)