Tanzania ; Linguistic imperialism; Globalisierung; Globalization; Transnationalization; Colonialism/Globalization ; Language and sex; Gender studies; Metrosexuality; Language and gender ; Ethnizität und Sprache; Ethnicity and language; Language and ethnicity ; Kulturvergleich; Language and culture ; Sprachattitüde; Linguizismus; Linguicism; Prestige; Monolinguale Ideologie; Monolingual ideology; Sprachliche Unsicherheit; Linguistic insecurity ; Africa (English language in) ; Afrika (engl. Sprache in) ; English in Africa ; Kiswahili; Swahili