This article examines conceptualisations of violence against women developed in Brazilian feminism, and in legal and institutional measures against violence, from the 1980s to the present. Based on ethnographic studies carried out at the Women’s Police Stations and Special Criminal Courts, and the controversies surrounding the 2006 Brazilian Law on domestic and familial violence, the authors map the meanings of expressions such as ‘violence against women’, ‘marital violence’, ‘domestic violence’, ‘family violence’ and ‘gender violence’. The article reveals that the discourse that transforms violence into crime, in the Brazilian context, leads to semantic and institutional developments that replace an interest in politicising justice for the defence of women with the judicialisation of family relations.