We don't have synonyms for bojan yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are bogan, botan and bejan.
(N) :
(Serbian Cyrillic and Macedonian: Бојан; Ukrainian, Russian and Bulgarian Cyrillic: Боян, transcribed Boyan) a Slavic given name, derived from the Slavic noun boj "battle."
(N) :
(Serbian Cyrillic and Macedonian: Бојан; Ukrainian, Russian and Bulgarian Cyrillic: Боян, transcribed Boyan) a Slavic given name, derived from the Slavic noun boj "battle."