(outdoors) A large open space to play on, usually for children.
A yard or other open-air space on a school campus where the children can play, especially during breaks
(urban) Small area with dedicated play equipment, usually for children''The city park playgrounds offer various slides, tubes and swings.
(figuratively) Any physical or metaphysical space in which a person or organization has free rein to do as they please.The exclusive tropical island was a millionaire's playground.