Questions & Answers about A reunião é online.
In A reunião é online, the A is the definite article and means the, not a.
- A reunião = the meeting
- If you wanted a meeting, you’d say uma reunião.
So the sentence translates as “The meeting is online.”
Portuguese has two verbs for to be: ser and estar.
- ser (é) is used for more permanent / defining characteristics or scheduled, fixed facts.
- estar (está) is used for temporary states or current situations.
A meeting being planned as an online meeting is treated like a fixed characteristic of that meeting (part of how it is organized), so Brazilians naturally say:
- A reunião é online. = The meeting is (an) online (meeting).
You might hear A reunião está online only in a very specific, more literal sense, like “the meeting is currently online (as opposed to offline),” but this is much less common and often sounds odd for a planned event.