identity/aɪ'dentətɪ/

n. sb's name or who he or she is

n. 〖复-ties/-tɪz/〗 [C; U] [缩略为ID] 身份：The police do not know the identity of the killer. 警方不知道杀手的身份。

◇an ID card 身份证

构词identify + c + -ity

音组-ntity/-ntətɪ/

identity; quantity