noun, noun or participle which takes 'suru'
false name; alias; impersonation
Refers to the act of using a fake name or identity, often in formal or legal contexts. Can be used as a noun or with する to mean 'to assume a false name'.
彼は偽称を使ってホテルに宿泊した。
He stayed at the hotel under a false name.
偽称
Entering into a contract under a false name constitutes fraud.