Save Type Political Subdivision Usage Portuguese (Brazilian), Portuguese Pronounced Pron. [a.la.ˈɡo.ɐs](Brazilian Portuguese) [a.la.ˈɡo.wɐs](Brazilian Portuguese) [ɐ.lɐ.ˈɣo.ɐʃ](Portuguese) [key·simplify] Meaning & History Plural form of Portuguese alagoa, a variant of lagoa ("lagoon"), referring to the Manguaba (the "southern lagoon") and Mundaú (the "northern lagoon") estuarine lagoons. This is the name of a state of Brazil.