Majority Language

Minority Language

The European Charter for Regional or Minority Languages (ECRML)

National Language

Official Language

Standard Language

Pluricentric language

Language Islands
(Sprachinseln)
(Kloss 1967)

Core Value Theory
(Smolicz 1979, 1981)

Linguistic Market Place Value
(Haugen 1980, Bourdieu 1982)

Domains of Use and Diglossia

Abstandsprache

Ausbausprache

Language Contact

Dialect Contact

Accommodation Theory

Convergence

Divergence

Interference and Transference

Code Switching

Code Mixing

Pidgin

Pidginisation

Creole

Koine

Dialect

Accent