This is the 2305th most frequent Portuguese word.
estão
"Estão" means "are" (third-person plural form of the verb "estar").
Used in a question to ask about someone's current state (present indicative).
Por que estão todos tão preocupados?
Why is everyone so worried?
Used to describe a state being experienced (present indicative).
Estão felizes após ganhar o jogo.
They are happy after winning the game.
Used to indicate an action currently happening (present continuous).