jes

1. colloq. yes!; yeah!
   Jes! Položio sam ispit! — Yes! I passed the exam!
   Kad je pao gol, svi su povikali: „Jes!“ — When the goal went in, everyone shouted "Yes!"

2. colloq. (confirmation, agreement) yes; that's right
   – Je l' ovo tvoj auto? – Jes, moj je. — "Is this your car?" "Yes, it's mine."

In the affirmative sense jes is a colloquial shortening of jeste.