This is the 299th most frequent Bulgarian word.
вие
"You" (plural or formal singular) in Bulgarian.
In this sentence, 'вие' is a formal pronoun for addressing a group or an individual respectfully.
Вие сте добре дошли в дома ми.
You are welcome in my home.
Here, 'вие' emphasizes direct address to the subject, used in a polite or formal manner.
Какви книги четете, когато вие имате време?
What books do you read when you have time?
'Вие' functions as a subject pronoun to respectfully indicate the people being addressed, in a context stressing their responsibility.