PEMEROLEHAN FONOLOGI BAHASA PERTAMA PADA ANAK USIA 2 TAHUN 3 BULAN STUDI KASUS “MUHAMAD SAEPUDIN”

Every child has their own level of acquiring their first language, these levels range from slow to fast.  The purpose of this study was to describe the acquisition of first language phonology in children aged 2 years and 3 months.  This study used a qualitative descriptive approach with the observation method.  The data collection technique in this study is the technique of observing, involving, taking notes with a data source named Muhamad Saepudin.  The data taken is the phonological acquisition of the first language in the data source.  The results of the study stated that the acquisition of vowel phonemes namely /a/, /i/, /u/, /e/, /ə/, and /o/ in Muhamad Saepudin can be said to be consistently mastered while the acquisition of mastered consonant phonemes includes /  b/, /g/, /h/, /m/, /n/, /p/, /t/, /w/, and /y/, so that data sources are stated to have not been consistently mastered.  Therefore, the data source is classified as being able to pronounce vocabulary in everyday life but there are still some utterances that are not yet perfect to pronounce.