Idiolect ; Sociolect ; Phonology (sociolinguistics) ; Sociophonology ; Xenophobia; Fremdenfeindlichkeit; Racism ; Ethnizität und Sprache; Ethnicity and language; Language and ethnicity ; Sprachbewahrung; Ethnolinguistic vitality; Vitality, ethnolinguistic; Sprachwechsel; Language shift; Heritage language; Language maintenance ; AAVE; Black English; African American English