Sprachenzählung; Demography (linguistics) ; Language census ; Instruction (medium of) ; Medium of instruction ; Multilingualism; Polylingualism; Plurilingualism ; Auswanderer; Emigrants; Migrant; Aussiedler; Gastarbeiter; Arbeitsmigranten; Immigrants/Emigrants ; Sprachbewahrung; Ethnolinguistic vitality; Vitality, ethnolinguistic; Sprachwechsel; Language shift; Heritage language; Language maintenance ; Ortssprache; Local language; Urban language ; German ; Holländisch; Dutch ; Swedish ; French ; Belgien (fr. Sprache in) ; Belgium (French language in) ; French in Belgium ; Spanish
