This is the 990th most frequent Czech word.
vy
"You" (formal or plural).
Here, 'vy' is used for polite address in the second person plural form.
Jak se máte vy?
How are you doing?
In this sentence, 'vy' refers specifically to a group of people being spoken to.
Vy jste ti správní lidé.
You are the right people.
'Vy' here serves to directly address and emphasize a specific person or group in the second person plural.