1. A supplementary or extra subject matter that is added to a primary discussion, course, or agenda
The teacher added an additional topic to the curriculum to cover recent developments in the field.
A professora adicionou um tópico adicional ao currículo para cobrir desenvolvimentos recentes na área.
2. An extra point of discussion or consideration beyond what was originally planned
We covered the main agenda and then discussed an additional topic regarding budget allocation.
Cobrimos a agenda principal e depois discutimos um tópico adicional sobre alocação de orçamento.