What does to speak about briefly mean?

"To speak about briefly" means to discuss a topic in a concise and short manner, focusing on the most important points without going into excessive detail.

Here are some synonyms:

* Summarize

* Outline

* Touch upon

* Mention

* Give a brief overview

* Hit the highlights

Think of it like a quick overview of a topic, giving just enough information to understand the main points without getting bogged down in specifics.