He received a BA degree in the Croatian language and Yugoslav literatures at the Faculty of Humanities and Social Sciences, University of Zagreb.
Brozović worked as an assistant at the Zagreb Theater Academy (1952–1953) and as a lecturer at the University of Ljubljana (until 1956).
In 2012, Viktor Ivančić identified Brozović as the individual within the institute primarily accountable for directing the disposal and destruction of 40,000 copies of the Encyclopedia of Yugoslavia in early 1990s.
[7][8][9] Among his main works are the book Standardni jezik ("Standard Language") (1970) and the article "Hrvatski jezik, njegovo mjesto unutar južnoslavenskih i drugih slavenskih jezika, njegove povijesne mijene kao jezika hrvatske književnosti" (Croatian: Its Place among the South Slavic and Other Slavic Languages, Its Historical Changes as the Language of Croatian Literature, 1978).
However, this Brozović's article also faces criticism due to the fact that "in the 18th century, there was no standard language (’überdachende’ sprachliche Entität), which would roof Kajkavian and Shtokavian".
[15] Retrospectively, west European scientists judge the Yugoslav language policy as an exemplary one.
[16][17][18] In 2012, Josip Manolić publicly claimed that the secret police of Yugoslavia (UDBA) had one of its agents, code named "Forum", contribute to the Declaration, and journalists linked Brozović to this pseudonym.
[19][20] Instead of Serbo-Croatian, Brozović preferred the term Central South Slavic diasystem,[21][22] asserting separate language status for Croatian and Serbian.