contest

noun
  1. A competition or event in which people compete to win. noun
    She won first place in the singing contest.
    The contest for the best photograph will be held next week.
  2. A dispute or argument about something. noun
    There was a contest over the ownership of the land.
    The election results were subject to a legal contest.
  3. To challenge or dispute something. verb
    He decided to contest the results of the election.
    The team plans to contest the referee's decision.