Gaúcho Portuguese is strongly associated with tu, commonly combined in everyday speech with a third-person verb form such as tu vai, although second-person agreement also survives in some communities and styles. Pronunciation differs sharply inside the state: Porto Alegre has high t/d palatalization, while several Italian-contact communities maintain much lower rates and distinctive r patterns.
The southern and western frontiers preserve Portuguese-Spanish contact vocabulary, including older rural terms shared with Uruguay and Argentina. Elsewhere, Talian, Hunsrückisch and other immigration languages have shaped local bilingual repertoires, while cattle routes and gaúcho migration carried words such as guri and piá into neighbouring states.