1. The maximum amount or level that something can hold, produce, or accommodate
The stadium is operating at full capacity with 50,000 spectators.
O estádio está operando com capacidade máxima com 50 mil espectadores.
2. Working or functioning at the highest possible level of efficiency or output
The factory is running at full capacity to meet the demand.
A fábrica está funcionando com capacidade máxima para atender à demanda.
3. Using all available resources, energy, or mental abilities
She was working at full capacity to complete the project on time.
Ela estava trabalhando com toda capacidade para concluir o projeto no prazo.