applied linguistics 
plural noun [treated as singular]
The branch of linguistics concerned with practical applications of language studies, for example language teaching, translation, and speech therapy.Since applied linguistics is concerned with language problems as experienced in the real world, it might appear that the two areas of enquiry in effect converge into one....
- If applied linguists were to take these accounts more seriously, applied linguistics might contribute more directly to improving the human condition.
- While negotiating for meaning has become extensively studied, negotiating as a speech event remains a curiously under researched area in applied linguistics.