King rules kingdom.

Meaning: This means that a king is a male ruler who has the power to make decisions and enforce laws in his kingdom. It's like saying, The king is the highest authority in his kingdom and is responsible for making decisions that affect the lives of his subjects.

Choice of Words: King is a male monarch who rules over a kingdom. Rules is a verb that means to have the power to make decisions and enforce laws. Kingdom is a territory or country ruled by a king or queen.