King

1. A male monarch. The King of England reigned for many years.
2. A powerful or influential person. He was the king of jazz music.
3. Something that has a preeminent position. In hard times, cash is king.
4. A component of certain games. In chess the king must be protected.
5. A playing card with the image of a king on it. They dealt him four kings in the last hand.
6. In a game of checkers. A checker that reaches the farthest row becomes a king.