Applied Linguistics is the branch of linguistics focused on the practical applications of language studies; it attempts to make practical use of the knowledge derived from general linguistic research. Applied linguistics includes several identifiable sub-fields: for example, corpus linguistics, language policy and planning, multilingualism, language education, minority and endangered languages, identity issues, as well as acquisition of a second language.

Applied Linguistics focuses on the relationship between theory and practice, using knowledge gained from the theory-practice interface to solve language-related problems in a reasoned way. It is about the study of language in order to respond to real world concerns.