Amtssprache; Official language; National language ; Language and society ; Ideologie und Sprache; Ideology and language; Ideology and linguistics; Ideologie und Sprachwissenschaft; Language and ideology ; Language and politics ; Multilingualism; Polylingualism; Plurilingualism ; French as international medium ; Language diffusion; Language shift; Sprachwechsel; Language spread ; Language planning; Purification of language; Sprachpurismus; Sprachverfall; Language decay; Language cultivation ; French
