Abraham, David A.Dalhatu, Abigail MusaAshikeni, Thomas Ogah2023-12-122023-12-122015-12-10Bemd, H. et al (2000) African Languages: An Introduction, Cambridge: Cambridge University press Crystal ,D (2010) The Cambridge Encyclopedia of language , Cambridge: Cambridge University Press. Davenport, M &Hannahs, S.J (2005) Introducing Phonetics & Phonology, London: Hodder Education. Essien, O (1986) Ibibio Names: their structure and their meanings, Ibadan:Daystar press. Hayes,B (2009) Introductory Phonology, West Sussex:Wiley-Blackwell.https://keffi.nsuk.edu.ng/handle/20.500.14448/3654This is an investigation of the effect of adjacent sounds on each other, their peculiar patterns and the syllable structure processes in Gbagyi A descriptive analytical method was used to elicit data using the Blench word list of 1017 lexical items as instrument for data collection. This research revealed that in Gbagyi, a nasal consonant assimilates the features of the consonant contiguous to it, a consonant is palatalized before a high front vowel, a vowel is nasalized after a nasal consonant and a final vowel of a verb stem is deleted before a noun or nominal which begins with a vowel. These findings no doubt contribute to the description of the sound systems of Gbagyi and the discipline of Phonology in general.enArticle