1. A significant, meaningful, or material addition or input that has real value or impact on a project, discussion, or goal
Her substantive contribution to the research project was recognized by all team members.
Sua contribuição substantiva para o projeto de pesquisa foi reconhecida por todos os membros da equipe.
2. In legal or formal contexts, a contribution that addresses the core issues or merits of a matter rather than procedural aspects
The lawyer made a substantive contribution to the case by presenting new evidence.
O advogado fez uma contribuição substantiva para o caso ao apresentar novas provas.