The main Portuguese dictionaries have thousands of lexical units and meanings that make us even assume that, in the compilation, there are all the unimaginable words of Portuguese. However, during the process of creating the 2022 Her for She campaign, part of Hershey’s HerShe empowerment platform, the client and BETC HAVAS were surprised to find that the word ‘sororidade’ (sisterhood in English) was not in almost any dictionary. It was then that the idea of ​​creating the “One-Word Dictionary” was born: an entire book with definitions of the term and entirely written by those who understand the subject the most: women.