Chatkhil dialect (CD) is one of the different dialects in Noakhali district for its individual

phonological, morphological and syntactical features. But in this paper I have tried to analyze Chatkhil dialect

on the aspects of phonological features. The consonants of Chatkhil dialect are discussed here according to the

place of articulation and manner of articulation. There are some significant rules to determine phonemes and

allophones of this dialect. Among them I have used Minimal pair selection test, Contrast test (Initial, Medial

and Final contrast) and Sub-minimal pair test. I have got seven oral vowels, five semi-vowels and twenty-two

diphthongs of Chatkhil dialect during the research. I also tried to illustrate vowel phonemic contrasts. These

entries components are discussed in this paper from the aspects of field linguistics.