Accommodation (sociolinguistics) ; Acculturation (sociolinguistics) ; Dialect levelling; Sprachakkomodation; Divergenz (Soziolinguistik) ; Divergence (sociolinguistics) ; Mainstreaming (sociolinguistics) ; Assimilation (sociolinguistics) ; Convergence (sociolinguistics) ; Consonant change ; History of language (sociolinguistics) ; Kanzleisprache; Chirograph; Bulle (Urkunde) ; Historical documents (language) ; Transfer (languages in contact) ; Adstratum language; Adstratsprache; Interference ; Phonische Interferenz; Languages in contact (phon.) ; Sprachkontakt (phon.) ; Interference (phon.) ; Spirant; Reibelaut; Fricative ; Approximant ; Merger (phonem.) ; Jeísmo; Seseo; Neutralization (phonem.) ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English ; Chicano; Puertoricans; USA (span. Sprache in den) ; Mexican American Spanish; USA (Spanish language in the) ; Spanglish; Inglañol; Tex-Mex; Spanish in the USA