"Kickoff" refers to the start of a game in sports, particularly in football and soccer. It occurs when the referee blows the whistle, and one team plays the ball from the center of the field. The kickoff can also happen after a goal is scored or at the beginning of the second half. In addition to its use in sports, "kickoff" can describe the launch of a project or event. In this context, it signifies the initial meeting or activity that sets the stage for future work, ensuring all participants understand their roles and objectives.