mladenac

1. (in plural) newlyweds; bride and groom
   Mladenci su otišli na medeni mesec u Grčku. — The newlyweds went on their honeymoon to Greece.
   Gosti su nazdravili mladencima. — The guests toasted the bride and groom.
2. formal bridegroom
   Mladenac je čekao mladu ispred crkve. — The groom was waiting for the bride outside the church.

It is mostly used in the plural, mladenci; for the groom alone the usual word is mladoženja.