How do you use "sos"?
What does "sos" mean and how would/could you use it in sentence?
2 Answers
sos voseo Spanish (Ser)

As the table shows it is Ser conjugated for vos in voseo Spanish. Use it where you would use tú eres in tuteo Spanish.
Among the irregular forms is sos for ser. Thus, vos sos mi amigo is the equivalent of tú eres mi amigo, or "you are my friend."