Coordinate bilingualism; Compound bilingualism; Dominanz (biling.) ; Dominance (biling.) ; Continuum (biling.) ; Sprachenwahl; Language choice; Diglossia ; Language diffusion; Language shift; Sprachwechsel; Language spread ; Sprachbewahrung; Ethnolinguistic vitality; Vitality, ethnolinguistic; Sprachwechsel; Language shift; Heritage language; Language maintenance ; Sprachentod; Extinct language; Language endangerment; Bedrohte Sprache; Linguicide; Linguizid; Language death ; Africa (English language in) ; Afrika (engl. Sprache in) ; English in Africa ; Kaaps-Hollands; Kaaps-Nederlands; Kapholländisch; Kapniederländisch; Cape Dutch ; Kxoé; Xũ-Khwe; Khoe; San ; Narrow Bantu; Bantu languages