What is the meaning of coup d tat?

A coup d'état, often simply referred to as a coup, is the sudden, illegal overthrow of a government, typically executed by a small group of individuals or military leaders. It usually involves the use of force or coercion to remove existing power holders and install new leadership. Coups can disrupt political stability and lead to significant changes in governance and policy. The term is derived from French, meaning "stroke of state."