1. Used to indicate that a statement is true in a general sense, without considering specific details or exceptions
Broadly speaking, the project was a success despite some minor setbacks.
De modo geral, o projeto foi um sucesso apesar de alguns contratempos menores.
2. Approximately; in a general way without being precise
Broadly speaking, the two approaches are similar.
Falando em linhas gerais, as duas abordagens são semelhantes.