What does vosotros mean?

Answer 1

"Vosotros/as" is an informal way of saying the "you all" pronoun in Spanish.

You would only use it on people you would know, such as friends, family members, etc. "Vosotros" for guys, or without gender group, and "vosotras" for females. And you would use "Ustedes" which is formal, you would use it on people you don't really know, or would talk respectfully with, such as principles, authorities, teachers, elders, etc.