play‧ground /ˈpleɪɡraʊnd/ noun [countable]

1. an area for children to play, especially at a school or in a park, that often has special equipment for climbing on, riding on etc:
children shouting and running in the playground

2. a place where a particular group of people go to enjoy themselves
playground of
the playground of the rich

[TahlilGaran] Dictionary of Contemporary English ▲

playground
noun
ADJ. children's | adventure | school
PLAYGROUND + NOUN bully, bullying | equipment | duty teachers on playground duty
PREP. in a/the ~ children in the school playground

[TahlilGaran] Collocations Dictionary ▲