language is really important to humans. Everything we do is connected in some-way with language. linguistics is a broad field with many interests,branches,and sub-branches which a real language this question, askyourselves whethe a person is able to drive a car proficiently without understanding the inner workings of the engine . likewise,can a speaker use a language correctly and appropriately without any conscious knowledge of its internal structure? Actually ,a linguist can know and understand the internal structure of a language without speaking it. linguistics therefore provides many possible uses. For example, linguistics can help in our study of foreign languages because through linguistics we have a better understanding of the structure of language. linguistics can be used i many field education (translating from and into foreign languages) tourism (translating and interpreting for foreign tourists) medicine (treatment of speech disorders) cryptology (devising secret codes for military and diplomatic use) and so on