Main entry: personal identity, individuality, identity
Definition: the distinct personality of an individual regarded as a persisting entity
Usage: you can lose your identity when you join the army
Main entry: indistinguishability, identicalness, identity
Definition: exact sameness
Usage: they shared an identity of interests
Main entry: identity
Definition: the individual characteristics by which a thing or person is recognized or known
Usage: geneticists only recently discovered the identity of the gene that causes it; it was too dark to determine his identity; she guessed the identity of his lover
Main entry: identity, identity element, identity operator
Definition: an operator that leaves unchanged the element on which it operates
Usage: the identity under numerical multiplication is 1