identity

1. (countable, uncountable)Sameness, identicalness; the quality or fact of (several specified things) being the same.

   Benjamin Franklin established the identity of electricity and lightning.

   Identität, Gleichheit, Übereinstimmung

   тожде́ственностьtoždéstvennostʹ, иденти́чностьidɛntíčnostʹ

   іденти́чністьidentýčnistʹ, тото́жністьtotóžnistʹ

2. (countable, uncountable)The difference or character that marks off an individual or collective from the rest of the same kind; selfhood; the sense of who something or someone or oneself is, or the recurring characteristics that enable the recognition of such an individual or group by others or themselves.

   I've been through so many changes, I have no sense of identity.

   This nation has a strong identity.

   Identität

   иденти́чностьidɛntíčnostʹ, индивидуа́льностьindividuálʹnostʹ, ли́чностьlíčnostʹ

   особи́стістьosobýstistʹ, індивідуа́льністьindyviduálʹnistʹ

3. (countable, uncountable)A name or persona—a mask or appearance one presents to the world—by which one is known.

   This criminal has taken on several identities.

   In this show, the competitor's identity will remain secret until after the vote.

   Identität

   ли́чностьlíčnostʹ, ли́чные да́нныеlíčnyje dánnyje

   the individual characteristics by which a thing or person is recognized or known

4. (countable, uncountable)An equation which always holds true regardless of the choice of input variables.

   The equation (x+y)(x−y) = x²−y² is an algebraic identity. It is true regardless of the values of x and y.

5. (countable, uncountable)Any function which maps all elements of its domain to themselves.

6. (countable, uncountable)An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this second element.

   Zero is the identity for the addition of real numbers.

7. (Australia, New Zealand, countable, uncountable)A well-known or famous person.

1. Tom kept his true identity secret.

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2. Tom didn't reveal his real identity to anyone.

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3. The police could not establish the identity of the man.

   ruПолиция не смогла установить личность мужчины.

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4. She said that her job gave her a sense of identity.

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5. He didn't reveal his identity.

   ruОн не раскрыл свою личность.

   deEr gab seine Identität nicht preis.

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regular