/play"grownd'/ , n.
1. an area used for outdoor play or recreation, esp. by children, and often containing recreational equipment such as slides and swings.
2. Informal. any place, environment, or facility used for recreation or amusement, as a resort: The tropical island is an international playground for the rich.
3. an arena of operation or activity.
[ 1770-80; PLAY + GROUND 1 ]