Sprache und Denken; Erkenntnis und Sprache; Language and thought; Erkenntnistheorie; Epistemology and language; Language and epistemology ; Communication research ; Shared intentionality; Collective intentionality; Intersubjectivity ; Vagueness (communication research) ; Explicitness (communication research) ; Implicitness (communication research) ; Uncertainty (communication research) ; Language and society ; Social constructionism; Sozialkonstruktivismus; Constructivism (philosophy) ; Normativität (Sprachphilosophie) ; Normativity (philosophy of language) ; Conventionality (philosophy of language) ; Vagheit; Vagueness (in language)