VernacularA vernacular or vernacular language is in contrast with a "standard language". It refers to the language or dialect that is spoken by people who are inhabiting a particular country or region. The vernacular is typically the native language, normally spoken informally rather than written, and seen as of lower status than more codified forms. It may vary from more prestigious speech varieties in different ways, in that the vernacular can be a distinct stylistic register, a regional dialect, a sociolect, or an independent language.
Variation (linguistics)Variation is a characteristic of language: there is more than one way of saying the same thing. Speakers may vary in pronunciation (accent), word choice (lexicon), or morphology and syntax (sometimes called "grammar"). But while the diversity of variation is great, there seem to be boundaries on variation – speakers do not generally make drastic alterations in word order or use novel sounds that are completely foreign to the language being spoken.
Code-switchingIn linguistics, code-switching or language alternation occurs when a speaker alternates between two or more languages, or language varieties, in the context of a single conversation or situation. Code-switching is different from plurilingualism in that plurilingualism refers to the ability of an individual to use multiple languages, while code-switching is the act of using multiple languages together. Multilinguals (speakers of more than one language) sometimes use elements of multiple languages when conversing with each other.
DiglossiaIn linguistics, diglossia (daɪˈɡlɒsiə , USalsodaɪˈɡlɔːsiə ) is a situation in which two dialects or languages are used (in fairly strict compartmentalization) by a single language community. In addition to the community's everyday or vernacular language variety (labeled "L" or "low" variety), a second, highly codified lect (labeled "H" or "high") is used in certain situations such as literature, formal education, or other specific settings, but not used normally for ordinary conversation.
EthnolectAn ethnolect is generally defined as a language variety that marks speakers as members of ethnic groups who originally used another language or distinctive variety. According to another definition, an ethnolect is any speech variety (language, dialect, subdialect) associated with a specific ethnic group. It may be a distinguishing mark of social identity, both within the group and for outsiders. The term combines the concepts of an ethnic group and dialect.
PidginA pidgin ˈpɪdʒᵻn, or pidgin language, is a grammatically simplified means of communication that develops between two or more groups of people that do not have a language in common: typically, its vocabulary and grammar are limited and often drawn from several languages. It is most commonly employed in situations such as trade, or where both groups speak languages different from the language of the country in which they reside (but where there is no common language between the groups).