The special interest in language, so the called linguistic turn, may be the most distinctive character of philosophy in the 20th century. Philosophers now deal with the traditional problems of metaphysics in the area of philosophy of language. They study language and meaning to understand some philosophical problems and the theories about language have immediate metaphysical applications. As a typical case of this, we would like to consider Putnam’s theory of reference and his internal realism. Putnam points out that if any problem has emerged as the problem for analytic philosophy, it is the problem of how words “hook onto” the.