When the language of historical texts is examined, words that are seen as characteristic in different dialects today and expressed as equivalent pairs are seen. Old Anatolian Turkish is a period in which equivalent couples are used frequently and together. (bul-/tap-, benze-/ohşa-, gece/dün, gibi/tek, kaç/neçe, kendü/öz, ört-/yap-, elig/kol, dal/budak, kemik/sünük )These words appear in these texts as equivalent pairs. In this study, the Bursa Copy of Yunus Emre's Divan will be handled and the equivalent pairs in the vocabulary will be revealed. Selected in the words of the old West Anatolian Turkish Considering the developments in Turkish, Yunus Emre use in Nüshası Board of Bursa and Turkey in Turkish literary language will be comparatively. Based on the number of equivalent pairs in the Divan, an evaluation will be made in terms of proximity to Old Anatolian Turkish and Western Turkish, and how to interpret the presence of equivalent pairs on the sofa will be discussed. The results obtained will also be presented in tables together with the couplet numbers on the sofa and their usage frequency. In this way, it will be possible to determine the relation of the work with today's written language