proglašavati

1. to declare; to proclaim; to announce
   Na kraju festivala proglašavaju pobednike. — At the end of the festival they announce the winners.
   Vlada ne proglašava vanredno stanje olako. — The government doesn't declare a state of emergency lightly.
2. (someone something) to declare; to name
   Svake godine proglašavaju najboljeg sportistu zemlje. — Every year they name the country's best athlete.
   Mediji ga proglašavaju herojem. — The media are proclaiming him a hero.
3. (proglašavati se) to declare oneself; to proclaim oneself
   Svi se danas proglašavaju stručnjacima. — Everyone declares themselves an expert these days.

In the sense 'declare someone something' it takes acc. + instr.: proglašavati koga pobednikom.