History of linguistics (19th century) ; History of linguistics (20th century) ; Identität und Sprache; Identity and language; Fremdheit und Sprache; Estrangement and language; Sprache und Integration; Integration und Sprache; Language and identity ; Ideologie und Sprache; Ideology and language; Ideology and linguistics; Ideologie und Sprachwissenschaft; Language and ideology ; Language criticism ; Language situation ; History of language (sociolinguistics) ; Dialektmischung; Dialect mixing; Dialect formation; Dialect leveling; Dialect loss ; Sprachbewahrung; Ethnolinguistic vitality; Vitality, ethnolinguistic; Sprachwechsel; Language shift; Heritage language; Language maintenance ; Dialektologie, perzeptuelle; Dialectology, perceptual; Folk dialectology; Perceptual dialectology ; Sprachattitüde; Linguizismus; Linguicism; Prestige; Sprachliche Unsicherheit; Linguistic insecurity ; Pluricentric language ; Language planning; Purification of language; Sprachpurismus; Sprachverfall; Language decay; Language cultivation ; Hochsprache; Schriftsprache; Acrolect; Standard language ; Switzerland (German language in) ; Schweiz (dt. Sprache in der) ; Deutsch in der Schweiz; German in Switzerland; Swiss German