1. to increase the extent, intensity, or commitment of one's participation or engagement in something
The company decided to deepen involvement in the local community through volunteer programs.
A empresa decidiu aprofundar o envolvimento na comunidade local através de programas de voluntariado.
2. to make a relationship, connection, or commitment more substantial or meaningful
They want to deepen involvement in strategic partnerships with international organizations.
Eles querem aprofundar o envolvimento em parcerias estratégicas com organizações internacionais.