What is Voseo?

I was several years into my Spanish studies when I started hearing and seeing things like: Hola, ¿Cómo estás? Bien, ¿y vos? ¿De dónde sos? ¿Vos qué hacés? Vos?  Sos? Hacés?  Say what?  I couldn’t help but think, is that even Spanish?  How could I have gone all these years and never have heard these terms before? So what is … Continue reading What is Voseo?