A diachronic study of language is the description of language at some point in time.

Pragmatics is different from semantics in that pragmatics studies meaning not in isolation, but in context.

General linguistics is generally the study of language as a whole.

Findings in linguistic studies can often be applied to the settlement of some practical problems. The study of such applications is generally known as a（）linguistics.

Langue refers to the a（）linguistic system shared by all the members of a speech community while the parole is the concrete use of the conventions and application of the rules.

The study of the ways in which morphemes can be combined to form words is called morphology.

Pragmatics

Modern linguistics regards the written language as primary, not the written language.

Linguistics

Social changes can often bring about language changes.