stadium

noun
  1. A large, usually open structure for sports events with tiers of seats for spectators. noun
    The football match was held in a massive stadium that could accommodate over 50,000 fans.
    The stadium erupted in cheers as the home team scored the winning goal.
  2. A stage or phase in a process, often used in a metaphorical sense. noun
    The project is still in the early stadium of development.
    At this stadium of the negotiations, both parties are still far from reaching an agreement.