Sociolinguistics is the study of language variation and change. It analyzes how social factors influence language use and how language varies based on social contexts. Some key points covered include:
- Language varies based on idiolects (individual speech patterns) and sociolects (patterns shared within social groups). Variation exists in pronunciation, vocabulary, grammar and discourse.
- Sociolinguistics describes language variation using tools like linguistic variables, and examines phonological, grammatical, lexical and discoursal variation.
- Social factors like geographical location, age, gender, social class and networks influence language variation. Standard languages become codified through institutions while non-standard dialects face stigma.