A thesis titled Phonological Analysis of the Sinj Dialect will be a scientific paper with a methodological component. The topic of the paper is the Sinj dialect, which belongs to the group of Western Neo-Shtokavian Ikavian dialects. Considering the insufficient research and scarce descriptions of the dialect of Sinj so far, the aim of this paper is to describe its segmental and suprasegmental levels based on a corpus of spoken language. For the purposes of this paper, acoustic recordings of about 15 native speakers born and raised in Sinj (reading and free conversational style) are planned. The speech recordings will be edited and analyzed using the Praat software for acoustic sound analysis (Boersma & Weenink, 2015). A perceptual and acoustic analysis of the recorded speech at the segmental and suprasegmental levels will be conducted to describe the pronunciation of vowels and consonants as well as the accent inventory. In the methodological component of the paper, diction exercises will be designed and presented for acquiring standard pronunciation. The planned research for the thesis will be submitted to the Ethics Committee of the Department of Phonetics at the Faculty of Humanities and Social Sciences, University of Zagreb.