Marginalization has been a special matter of question for African-American leaders, thinkers (B.T. Washington, W.E.B. Dubois) and writers in the United States. Thus, it has been an ongoing debate throughout the 20th century and the debate was drawn in A Raisin in the Sun (1959), and the first play that was presented on Broadway by an African-American female dramatist, Lorraine Hansberry. The aim of this study is to analyze marginality related to cultural spaces in A Raisin in the Sun through social criticism. Derrida’s basic formulation, ‘différance’, reflects that meaning can be deferred. This formulation is applied to A Raisin in the Sun as the dreams (of each character in the play) deferred. We have mainly examined marginality associated with deferred dreams of the Younger family members in A Raisin in the Sun.