1. to decrease the level of participation, engagement, or commitment in something
The company decided to reduce involvement in that project due to budget constraints.
A empresa decidiu reduzir envolvimento naquele projeto devido a restrições orçamentárias.
2. to withdraw or lessen one's engagement from a situation or relationship
She chose to reduce involvement with the organization after the conflict arose.
Ela escolheu reduzir envolvimento com a organização após o conflito surgir.