noun, plural i·den·ti·ties.
- an equation that is valid for all values of its variables.
- Also called identity element, unit element, unity.an element in a set such that the element operating on any other element of the set leaves the second element unchanged.
- the property of a function or map such that each element is mapped into itself.
- the function or map itself.
Origin of identity
Synonyms for identity
Related Words for identitystatus, name, character, identification, existence, integrity, personality, unity, equality, singleness, self, coherence, uniqueness, distinctiveness, oneness, singularity, particularity, circumstances, similitude, accord
Examples from the Web for identity
Contemporary Examples of identity
They are not the actual traffickers, Yazbek says, so generally the other refugees protect their identity.Ghost Ships of the Mediterranean
Barbie Latza Nadeau
January 6, 2015
But those strands of his identity are all wound around the conspiracy that led him back to Gambia for the first time in 23 years.The Shadowy U.S. Veteran Who Tried to Overthrow a Country
January 6, 2015
Identity issues seem to have dogged Otis since his troubles began.His First Day Out Of Jail After 40 Years: Adjusting To Life Outside
January 3, 2015
In a remote location with little means for economic development, the Brogpas have cultivating this identity to their advantage.The Himalayas’ Hidden Aryans
January 3, 2015
Every facet of his identity, taken alone, seemed at war with every other part of him.The Sydney Astrologer Turned Islamic Radical
December 16, 2014
Historical Examples of identity
A point of seeming difference between them establishes their identity.The Man Shakespeare
The Professor—I had guessed his identity—joined us, glancing at me inquisitively.The Bacillus of Beauty
She was like a hunted hare, dodging everyone she fancied might discover her identity.Thoroughbreds
W. A. Fraser
We see that the puzzle about identity proves at last to be of Grecian origin.Tales And Novels, Volume 4 (of 10)
The trout-fly settled all doubts in my mind as to his origin and his identity.The Underdog
F. Hopkinson Smith
noun plural -ties
- that relation that holds only between any entity and itself
- an assertion that that relation holds, as Cicero is Tully
- an equation that is valid for all values of its variables, as in (x – y)(x + y) = x ² – y ². Often denoted by the symbol ≡
- Also called: identity elementa member of a set that when operating on another member, x, produces that member x: the identity for multiplication of numbers is 1 since x .1 = 1. x = xSee also inverse (def. 2b)
Word Origin for identity
c.1600, "sameness, oneness," from Middle French identité (14c.), from Late Latin (5c.) identitatem (nominative identitas) "sameness," from ident-, comb. form of Latin idem (neuter) "the same" (see identical); abstracted from identidem "over and over," from phrase idem et idem. [For discussion of Latin formation, see entry in OED.] Earlier form of the word in English was idemptitie (1560s), from Medieval Latin idemptitas. Term identity crisis first recorded 1954. Identity theft attested from 1995.