kickoff

/ˈkɪkˌɔf/
noun
  1. The start of a game, especially in football or soccer, when the ball is kicked to begin play.
    • The team scored a touchdown on the very first kickoff.
    • The kickoff is scheduled for 7 PM tonight.
    • Fans cheered loudly as the referee signaled the kickoff.
  2. The beginning or start of an event, project, or activity.
    • The festival's kickoff parade attracted thousands of people.
    • We had a party to celebrate the kickoff of summer vacation.
    • The company held a meeting for the kickoff of the new marketing campaign.
Antonyms
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