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" ;

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" ;

3. (

• identity ,
• identity_element ,
• identity_operator

) an operator that leaves unchanged the element on which it operates; "the identity under numerical multiplication is 1" ;

4. (

• identity ,
• identicalness ,
• indistinguishability

) exact sameness; "they shared an identity of interests" ;