1. The official start or launch event of a political, marketing, or advertising campaign
The presidential campaign kickoff was held in front of thousands of supporters.
O lançamento da campanha presidencial foi realizado diante de milhares de apoiadores.
2. An inaugural event or announcement that marks the beginning of an organized effort or initiative
The company held a campaign kickoff to introduce their new product line.
A empresa realizou um lançamento de campanha para introduzir sua nova linha de produtos.