/fɪkˈtɪʃəs ˈsɪɡnətʃər/ – Phrase
Definition: chữ ký giả mạo.
A more thorough explanation: A fictitious (forged) signature refers to a signature that has been falsely created or altered without authorization, typically with the intent to deceive or defraud. It is a form of forgery and is considered illegal and fraudulent under the law.
Example: The document was deemed invalid due to the presence of a fictitious (forged) signature.