Reviews ; Kulturvergleich; Language and culture ; English as international medium ; Sprachbewahrung; Ethnolinguistic vitality; Vitality, ethnolinguistic; Sprachwechsel; Language shift; Heritage language; Language maintenance ; Sprachentod; Extinct language; Language endangerment; Bedrohte Sprache; Linguicide; Linguizid; Language death ; Language planning; Purification of language; Sprachpurismus; Sprachverfall; Language decay; Language cultivation
