affinity
C1Formal, academic, technical
Definition
Meaning
A natural liking for, understanding of, or connection to something or someone.
A similarity of characteristics suggesting a relationship or connection; in chemistry, the inherent attraction or force between substances that causes them to combine.
Linguistics
Semantic Notes
Implies a deep, often inherent connection or attraction, stronger than a simple preference. It often describes connections based on shared nature, structure, or spirit.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences. Spelling is identical. In chemistry, both use 'affinity' identically.
Connotations
In both, carries a formal, somewhat intellectual connotation. In British English, may be slightly more associated with social/class connections (e.g., 'affinity group').
Frequency
Slightly more common in formal British contexts (e.g., university societies, 'affinity cards'); American usage is strong in business ('affinity marketing') and science.
Vocabulary
Collocations
Grammar
Valency Patterns
have/feel an affinity for [noun/gerund]have/feel an affinity with [noun]there is an affinity between [noun] and [noun]show an affinity to/towards [noun]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Elective affinity”
- “Kindred spirits (related concept)”
- “Birds of a feather (related concept)”
Usage
Context Usage
Business
Marketing to specific groups ('affinity marketing'); financial products ('affinity credit card').
Academic
Describing relationships in literature, history, or biology; a key term in sociology and chemistry.
Everyday
Describing a natural connection with a person, place, or activity.
Technical
Chemistry: 'electron affinity', 'binding affinity'. Biology: 'antigen affinity'.
Examples
By Part of Speech
verb
British English
- This molecule is engineered to affinitise with the receptor. (Technical/rare)
American English
- The antibody was affinity-purified. (Technical/compound adjective)
adverb
American English
- The proteins bind affinity. (Technical/rare, usually 'with high affinity')
adjective
British English
- They offer affinity railcards for members of certain organisations.
Examples
By CEFR Level
- He has an affinity for classical music.
- She felt an immediate affinity with her new colleague.
- There's a clear cultural affinity between the two neighbouring countries.
- The politician's affinity with rural voters helped her win the election.
- The author explores the elective affinity between the novel's two protagonists.
- The study measured the binding affinity of the new drug to its target protein.
Learning
Memory Aids
Mnemonic
Think of AFFINITY as A-FRIEND-IN-ITY – the quality of being like a friend, a natural connection.
Conceptual Metaphor
CONNECTION IS A PHYSICAL BOND / LIKE ATTRACTS LIKE.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating directly as 'афинность' (nonsense).
- Not exactly 'сходство' (similarity) – implies active attraction, not just likeness.
- Closer to 'родство душ' (spiritual kinship) or 'влечение' (attraction) in personal contexts.
- In technical contexts, use established terms like 'аффинность' (chemistry/biology) or 'сродство'.
Common Mistakes
- Using 'to' instead of 'for' or 'with' (e.g., *affinity to music).
- Using in overly casual contexts where 'liking' is sufficient.
- Confusing with 'infinity'.
- Treating as a countable noun only; it is usually countable (an affinity), but can be uncountable in technical use.
Practice
Quiz
In which context is 'affinity' used INCORRECTLY?
FAQ
Frequently Asked Questions
Yes, it is generally considered formal or academic, though it is also used in everyday speech to express a strong, natural connection.
The most common prepositions are 'for' (an affinity for something) and 'with' (an affinity with someone/something). 'Between' is used when linking two entities (an affinity between A and B).
In chemistry, it refers to the tendency of a substance to combine with another, such as 'electron affinity' or 'binding affinity'.
No, 'affinity' is not a standard verb in modern English. It is a noun. Related technical verbs exist, like 'affinity-purify', but these are compounds.