Tonality is a phonological feature, not a typological distinction.

Analytic languages rely on free morphemes to convey meaning, rather than bound morphemes.

Sanskrit is a highly synthetic language, with many bound morphemes.

In ergative languages, the subject of a transitive verb is marked with a special case, while the object is marked with the nominative case.

Turkish is a head-marking language, meaning that grammatical information is marked on the head of a phrase, rather than on its dependents.

Language variation can be studied at all levels of linguistic analysis, from phonology to syntax.

Dialectal variation can be caused by a variety of factors, including geography, social class, and age.

Idiolect is the unique way that an individual speaks, including their pronunciation, grammar, and vocabulary.

Language change is a gradual process that occurs over time, as languages adapt to changing circumstances.

Climate change is not typically considered a factor that can contribute to language change.

Loanword borrowing is the process by which a language adopts words from another language.

Pidgins and creoles are simplified languages that develop when two or more groups of people need to communicate, but do not share a common language.

Language endangerment refers to the process by which a language becomes extinct, typically due to the loss of speakers.

Language revitalization efforts aim to preserve and promote endangered languages, teach them to new speakers, and document them for future generations.

The study of Typology and Language Variation helps us to understand the diversity of languages, identify universal features of language, and trace the history of languages.