identity
/ai'dentiti/
Definition
- Noun:
- The fact of being who or what a person or thing is: The set of characteristics that make an individual or group unique and distinguishable.
- The condition of being the same as something else: The state of being exactly alike or identical; sameness.
- (Mathematics) An equation that is true for all values of its variables: A statement of equality that holds for all permissible values of the unknowns.
Usage
- Identity is used to describe the core, distinguishing features of a person, group, or object. It answers the question "Who or what is this?"
- It is a fundamental concept in social sciences, psychology, and philosophy.
- In mathematics, it denotes an equality that is universally true.
Examples
- Personal/Individual Identity:
- She is exploring her cultural identity.
- The witness could not confirm the suspect's identity.
- Sameness:
- The identity of their opinions was surprising.
- Mathematics:
- The trigonometric identity sin²θ + cos²θ = 1 is fundamental.
Advanced Usage
- Identity Crisis: A period of uncertainty and confusion about one's sense of self.
- The character in the novel experiences a profound identity crisis.
- Identity Theft: The fraudulent acquisition and use of a person's private identifying information.
- He was a victim of identity theft.
Variants and Related Words
- Identify (verb): To establish or indicate who or what someone or something is.
- Can you identify the person in this photograph?
- Identification (noun): The action or process of identifying someone or something.
- You will need two forms of identification.
- Identical (adjective): Similar in every detail; exactly alike.
- The twins are identical.
Synonyms
- Individuality: The quality or character that distinguishes one person or thing from others.
- Personality: The combination of characteristics or qualities that form an individual's distinctive character.
- Sameness: The quality of being the same; identity or similarity.
Related Phrases
- Sense of identity: A person's understanding and feeling of who they are.
- Moving to a new country can affect one's sense of identity.
- Identity card (ID card): A card carrying personal details and a photograph, used to prove a person's identity.
- Please present your identity card at the entrance.
Idioms
- To have an identity of its own: To possess unique and distinctive qualities.
- The old neighborhood still has an identity of its own despite the new developments.
Noun
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exact sameness
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they shared an identity of interests
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an operator that leaves unchanged the element on which it operates
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the identity under numerical multiplication is 1
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the individual characteristics by which a thing or person is recognized or known
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geneticists only recently discovered the identity of the gene that causes it
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it was too dark to determine his identity
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she guessed the identity of his lover
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the distinct personality of an individual regarded as a persisting entity
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you can lose your identity when you join the army
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