arena

Noun

• a playing field where sports events take place

• a large structure for open-air sports or entertainments

• the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand

• a particular environment or walk of life
  • his social sphere is limited
    
  • it was a closed area of employment
    
  • he's out of my orbit
    

Related words

• Synonyms: 
  scene of action , stadium , bowl , sports stadium , sphere , domain , area , orbit , field