This paper aims to describe linguistic interpretation (tafsir lughawi) as a tool in understanding the language of the Koran and sources that can be used as references in the interpretation of the Koran. The types of linguistic interpretations obtained are interpretations with the i'rab Al-Quran approach, nahwu, morphology, sharaf, allegory (amtsal), munasabah, qira'ah. Linguistic interpretation can affect the theological, Sufistic, philosophical, and scientific sides. Linguistic interpretation is also not just understanding the verses of the Koran literally, and of course it can touch social and other aspects, so that the meaning of the verses of the Koran can be fully understood. The interpreter's linguistic ability has an important role i...