The article is devoted to the process of acquisition of a linguistic norm. This newly introduced notion is verified empirically in the scope of contemporary Polish – its partial norms: vocabulary and lexical norms. Conclusions arising from analyses of the material of spoken Polish and from the so-called ‘youngest Polish’ in comparison with data contained in studies on general Polish show that the phenomenon of acquisition of the linguistic norm occurs. Questions have also been posed, which have so far remained unanswered scientifically, concerning the limits of acquisition in terms of the age of the persons acquiring it, as well as the acquisition of other partial language norms. I also postulate a new ontology of normative competence to complement the dual arrangement of linguistic competence and communicative competence.