Someone who identifies; a person who establishes the identity of someone or something.
One who identifies as a particular type or role; one who says and believes that they are a certain thing.
A formal name used in source code to refer to a variable, function, procedure, package, etc. or in an operating system to refer to a process, user, group, etc.
A primary key.
A guidebook that helps determine the specific class of an object (such as a mushroom, herb, fish, bird, drug, or mineral), or its individual identity (such as that of a star).
Something that identifies or uniquely points to something or someone else.
A code that distinguishes a particular element from all other elements in a document.
A name or persona—a mask or appearance one presents to the world—by which one is known.
An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this second element.
A well-known or famous person.
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 themself.
An equation which always holds true regardless of the choice of input variables.
Sameness, identicalness; the quality or fact of (several specified things) being the same.
Any function which maps all elements of its domain to themselves.