1. to make problems or challenges more severe, complex, or harder to resolve
The lack of communication will only deepen the difficulties between the two departments.
A falta de comunicação só vai aprofundar as dificuldades entre os dois departamentos.
2. to investigate or examine problems more thoroughly and intensely
We need to deepen our understanding of the difficulties faced by our customers.
Precisamos aprofundar as dificuldades enfrentadas pelos nossos clientes.