Brozović has been described as one of the most influential Croatian linguists of the 20th century. However, this view is given from an extremely nationalist perspective, as Brozović was known to often abandon linguistics for an extremely nationalist discourse. Among his main works are the book Standardni jezik and the article "Hrvatski jezik, njegovo mjesto unutar južnoslavenskih i drugih slavenskih jezika, njegove povijesne mijene kao jezika hrvatske književnosti" . The former gives a typology of standard languages, which however meets criticism for containing disputable and vague criteria. The latter divides the history of the Croatian language into three pre-standard and three standard periods. Whereas it was widely believed that Croatian was only standardized around the time of the Illyrian movement and Ljudevit Gaj, Brozović argued that the standardization began around 1600 and greatly developed around 1750. However, this Brozović's article also faces criticism due to the fact that "in the 18th century, there was no standard language, which would roof Kajkavian and Shtokavian". In other words, the major standardization activities took place only in the 19th century. Brozović was one of the authors of the Declaration on the Status and Name of the Croatian Standard Language, an influential programmatic statement against Yugoslavian linguistic unitarianism from a Croatian nationalist perspective. Two years before Declaration, Brozović denied the existence of Yugoslavian linguistic unitarism: "for Croato-Serbian language as language, as linguistic phenomenon, as language in the Slavic family, there has been no need to unify: it has always been a unity". Retrospectively, west European scientists judge the Yugoslav language policy as an exemplary one. It turned out that the Deklaracija was the work of the secret police of Yugoslavia and that Brozović was a member of the UDBA under the pseudonym "Forum". Instead of Serbo-Croatian, Brozović preferred the term Central South Slavic diasystem, asserting separate language status for Croatian and Serbian. However, Brozović advocated the term "Croato-Serbian" even in 1988. As far as language status is concerned, Brozović has asserted for nearly three decades that "the Serbian and Croatian variants are phenomenons, which are analogous to the English and American variants"; "As in other cases where several nations use one standard language, the standard Croato-Serbian language is not unified. In linguistics, the realizations of such standard languages are called variants of a standard language". Brozović maintained that it is "a fact that Serbs and Croats have a common language", and he described it as pluricentric even in 1992. In the 1990s, Brozović became one of the leading proponents of linguistic purism in Croatia. Brozović states that the list of 100 words of the basic Croatian, Serbian, Bosnian, and Montenegrin vocabulary, as set out by Morris Swadesh, shows that all 100 words are identical. According to Swadesh, at least twenty words must differ if they are to be considered as different languages. Brozović received the Zadar City Award for a prominent scientific activity in the 1970, and an Award for Life's Work of the Republic of Croatia in 1992.
Works
Rječnik jezika ili jezik rječnika, Zagreb, 1969
Standardni jezik, Zagreb, 1970
, Zagreb, 1971
Hrvatski jezik, njegovo mjesto unutar južnoslavenskih i drugih slavenskih jezika, njegove povijesne mijene kao jezika hrvatske književnosti, in a book by a collective of authors, Zagreb, 1978
Fonologija hrvatskoga književnog jezika in the book by a collective of authors Povijesni pregled, glasovi i oblici hrvatskoga književnog jezika, Zagreb, 1991
