a male sovereign or monarch; a man who holds by life tenure, and usually by hereditary right, the chief authority over a country and people.
( initial capital letter ) God or Christ.
a person or thing preeminent in its class: a king of actors.
a playing card bearing a picture of a king.
Chess . the chief piece of each color, whose checkmating is the object of the game; moved one square at a time in any direction.
Checkers . a piece that has been moved entirely across the board and has been crowned, thus allowing it to be moved in any direction.