It is always asserted that literary writers do not write in vacuums, they usually present literary work to serve as a mirror of life in order to evoke universal human experience, and most of the time, to relay things that happen to human beings. In the same vein, Mariama Ba ‘s So Long a Letter has been lexically and semantically presented, to reflect or imitate the realities of life. Therefore this study attempts a lexico-semantic study of Mariama Ba’s So Long a Letter in order to reveal the author’s creative deployment of language to achieve her purpose in the text. In other words, the study examines how the author uses words to expose the ills of African society through the use of figures of speech, lexical relations and sense relation among others in the text, to develop the themes of political exclusion, evils of polygamy, sadness and loneliness, socio-economic degradation, betrayal, immorality, among others
Keywords: Letter, Lexical Relations., Lexico-Semantic, Study
