prvak

1. champion
   Đoković je ponovo svetski prvak. — Djokovic is world champion again.
   Zvezda je postala prvak države. — Red Star became national champion.
2. (of a pupil) first-grader
   Đaci prvaci danas kreću u školu. — First-graders start school today.
3. (of a party, organisation) leader; leading figure
   Prvaci opozicije su se sastali juče. — Opposition leaders met yesterday.
4. (of a theatre) leading actor; principal
   On je prvak drame Narodnog pozorišta. — He is a leading actor of the National Theatre's drama company.

The feminine form is prvakinja.