This paper is intended to construct philosophically the concept 'we' from a comprehensive taxonomy of the first-person plural pronoun ‘we’. Philosophical constructivism after Deleuze and Guattari is applied. Starting from the grammatical definition, it is possible to display an array of oppositions that provides internal and external consistency to the concept. It is shown that the pronoun involves a multiplicity of usages so as to deal with it as a sort of discourse tool that transforms the social domain.