5-stack
Social GamingDefinition
A 5-stack is a premade team of five players that queues together for a five-player game mode such as Valorant Competitive, League of Legends Flex 5v5, or Counter-Strike 2 Premier. Stacking the maximum players reduces the chance of being matched with strangers and is the typical setup for serious ranked or competitive play.
Example
"We need one more — anyone free for a 5-stack tonight?" The captain wants a fifth player so the team can queue Valorant ranked together.