false personation; misrepresentation of social status
Formal term used in legal or official contexts for pretending to be someone else or lying about one's social position, occupation, or identity.
He was arrested for false personation.
Misrepresentation of identity is a serious crime.
詐称 is a broader term for false claims or misrepresentation, while 身分詐称 specifically refers to lying about one's identity or social status.
Compound of 身分 (status, identity) and 詐称 (false claim, misrepresentation).