Noun identity has 4 senses
  1. identity, personal identity, individuality - the distinct personality of an individual regarded as a persisting entity; "you can lose your identity when you join the army"
    --1 is a kind of personality
    --1 has particulars: gender identity; identification; personhood
    Derived form: verb identify1
  2. identity - the individual characteristics by which a thing or person is recognized or known; "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"
    --2 is a kind of
    recognition, identification
    Derived forms: verb identify2, verb identify5, verb identify1
  3. identity, identity element, identity operator - an operator that leaves unchanged the element on which it operates; "the identity under numerical multiplication is 1"
    --3 is a kind of operator
  4. identity, identicalness, indistinguishability - exact sameness; "they shared an identity of interests"
    --4 is a kind of sameness
    --4 has particulars: oneness, unity; selfsameness
    Derived forms: verb identify3, verb identify6