1. To gradually gather, increase, or build up physical, mental, or emotional power or resilience over time
The athlete accumulated strength through consistent training over several months.
O atleta acumulou força através do treinamento consistente ao longo de vários meses.
2. To develop greater capability or influence progressively
The movement accumulated strength as more people joined the cause.
O movimento acumulou força conforme mais pessoas se juntavam à causa.