 It might be more promising to allow meaning determining rules to be prescriptions (or proscriptions), endowing expressions with meanings by distinguishing between semantically correct (pre- or proscribed) and incorrect (forbidden) uses. They would be constitutive in the sense of its being impossible to meaningfully use the expressions they govern without their being in force for the speaker (cf. Glüer &amp; Pagin 1998; Kiesselbach 2014; Hlobil 2015; Reiland forthcominga).