noun
kickoff rally; pep rally; motivational gathering
A meeting or event held to boost morale and determination before starting a project, campaign, or collective action. Often used in business, political, or activist contexts.
新プロジェクトの開始前に、社員全員で決起集会を開いた。
Before launching the new project, all employees held a kickoff rally.
選挙戦の最終日に、支持者たちが決起集会を行った。
On the final day of the election campaign, supporters held a pep rally.