Answer:
condition or character as to who a person or what a thing is; the qualities, beliefs, etc., that distinguish or identify a person or thing: a case of mistaken identity; a male gender identity; immigrants with strong ethnic identities. Definition of identity
1a: the distinguishing character or personality of an individual : INDIVIDUALITY
b: the relation established by psychological identification
2: the condition of being the same with something described or asserted
establish the identity of stolen goods
3a: sameness of essential or generic character in different instances
b: sameness in all that constitutes the objective reality of a thing : ONENESS
4: an equation that is satisfied for all values of the symbols
5: Identity element