/ˌʤæktɪˈteɪʃən/ – Noun
Definition: việc xác nhận man trá, việc khai man.
A more thorough explanation: Jactitation is a legal term that refers to the false boasting or giving of false information about one’s marital status or relationship with another person, with the intention of causing harm or confusion. It can also refer to the public declaration of a false claim or assertion about a legal right or status.
Example: The plaintiff filed a lawsuit against the defendant for jactitation of marriage, claiming that the defendant falsely boasted about being married to the plaintiff.