Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; Autorität (Diskursanalyse) ; Authority (discourse analysis) ; Symmetrie (Diskursanalyse) ; Symmetry (discourse analysis) ; Hierarchie (Diskursanalyse) ; Hierarchy (discourse analysis) ; Sprache und Herrschaft (Diskursanalyse) ; Language and power (discourse analysis) ; Entitlement (communication research) ; Gatekeeping (communication research) ; Dominance (communication research) ; Language and power; Power and language; Dominance and language; Herrschaft und Sprache; Logocracy; Language ownership; Language and domination ; Multilingualism; Polylingualism; Plurilingualism