Barrierefreiheit; Communication access; Communication barrier; Exklusion (Soziolinguistik) ; Exclusion (sociolinguistics) ; No Child Left Behind Act; Inclusion/Exclusion (sociolinguistics) ; Ideologie und Sprache; Ideology and language; Ideology and linguistics; Ideologie und Sprachwissenschaft; Language and ideology ; Language and politics ; Sociology of translation; Language and social studies ; Community language; Netzwerk (Soziolinguistik) ; Network (sociolinguistics) ; Speech community ; Sprachenpolitik; Language management; Language politics ; Phonemwandel; Sound change (phonem.) ; Sprachwandel (phonem.) ; Language change (phonem.) ; Allophonic change; Sound change (phonet.) ; Language change (phonet.) ; Sprachwandel (phonet.) ; Phonological change ; Typologie; Typology; Language typology ; Mundartforschung; Dialectology ; Click ; Mazedonisch; Macedonian ; Sinhala; Ceylonese; Sinhalese ; Nguni languages