/səbˈvɜːʃənˈ/ – noun
Definition: 1. hoạt động phá hoại, sự phá hoại;
2. việc lật đổ, sự hạ bệ.
A more thorough explanation: Subversion is the act of undermining or destabilizing an established system, institution, or government through covert, deceptive, or undermining methods. It often involves attempts to overthrow or weaken the authority or integrity of a system from within.
Example: The defendant was charged with subversion for attempting to overthrow the government.