This is the 5683rd most frequent Russian word.
приглашены
"Invited."
The word 'приглашены' here indicates that we have received an invitation to attend the conference.
Мы приглашены на конференцию в следующем месяце.
We are invited to the conference next month.
'Приглашены' is used in the past to indicate an invitation addressed to them before the start of the event.
Они были приглашены прийти раньше времени начала события.
They were invited to come before the event started.
Here, 'приглашены' implies a conditional sense, referring to the state of being invited and expecting confirmation.