Abstract
By personally visiting a location, we have a much more complete and accurate feel and understanding of the interior design, then we can receive from pictures or descriptions. Because of this, in researching the history of interior design, it is impossible to experience the space in the design by not viewing it in persov. Instead, we must experience it indrectly through the use of descriptive language. Therefore it is important to deliver our meaning of the space in the interior design through clear and specific modern language rather than using classic language, which could be more confusing. In this study, the 7 most basic items of invariability among Bruno Zevi's modern language has been applied to describe the space in Wright's historical Prairie House. Thereupon, Wright's interior design concept and essential point is grasped through the analyzing of his space with modern language. Bruno Zevi's 7 items of invariability are suggested as an alternative which can deliver a clear and scientific meaning of interior desigv.