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Definition of affinity

affinity

/əˈfɪn.ɪ.ti/
af · fin · i · ty

Plural:affinities
•
Adjective:affinitive
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affinity Lexical Profile

affinity Game Scores & Validity

• noun

1

A spontaneous or natural liking, sympathy, or attraction toward a person, thing, or activity.

Example

"From an early age, she showed a strong affinity for classical music and languages."


2

A close similarity, inherent connection, or structural resemblance between people, ideas, or things.

Example

"Linguists have long studied the structural affinities between Sanskrit and ancient European languages."


3

In chemistry and immunology, the degree to which a substance or molecule tends to combine or bind with another.

Example

"Hemoglobin has a much higher affinity for carbon monoxide than for oxygen."


4

A relationship formed by marriage rather than by blood, as distinguished from consanguinity.

Example

"In legal contexts, relatives by affinity include stepparents and in-laws."

Synonyms
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Antonyms
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Word Nuance & Usage

When expressing a natural liking or attraction, 'affinity' is typically followed by the prepositions 'for' or 'with' (e.g., 'an affinity for music'), whereas 'between' is used to describe a mutual resemblance or connection.

• Rhymes for affinity

Word Origin & Etymology

Borrowed via Old French from Latin 'affinitas' (meaning 'neighborhood' or 'kinship by marriage'), derived from 'affinis' ('bordering on' or 'related'), combining 'ad-' ('to, toward') and 'finis' ('border' or 'boundary').

Cite this Entry


Wordmom. (2026). Definition of Affinity. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/affinity
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